US5139940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Activation compounds and methods of synthesis of activation compounds
Assignee: Novartis Vaccines and Diagnostics Inc
•
Filing: 1989-10-26
•
Granted: 1992-08-18
•
Expires: 2009-10-26
Abstract
Abstract The invention is directed to isopsoralen compound compositions that contain a variety of substitutions which yet permit their binding to nucleic acid polymers. Reaction conditions that activate these bound isopsoralens results in covalent crosslinking to the nucleic acid polymers. The resultant complex is inhibited from being a template for the template-directed enzymatic synthesis of a complementary nucleic acid polymer. Beside the isopsoralens compositions, the invention includes their synthesis, the nucleic acid complex production and detection, and the above inhibitory method of use of the isopsoralens.
Inventors
- 👤 Stephen T. Isaacs
- 👤 Goerge D. Cimino
- 👤 Kenneth C. Metchette
- 👤 John W. Tessman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:56
CPC Classifications
C; C07; C07D; C07D493/00; C07D493/02; C07D493/04; B; B01; B01L; B01L7/00; B01L7/52; C07D311/00; C07D311/02; C07D311/04; C07D311/06; C07D311/08; C07D311/18; C07H; C07H21/00; C12; C12N; C12N15/00; C12N15/09; C12N15/10; C12P; C12P19/00; C12P19/26; C12P19/28; C12P19/30; C12P19/34; C12Q; C12Q1/00; C12Q1/68; C12Q1/6844; C12Q1/6848; Y; Y10; Y10S; Y10S435/00; Y10S435/81
Claims Analysis
Total Claims: 72
Claim 1
Independent Claim
61 words
A compound having the formula: ##STR18## in which R 1 is --OH, --Br, --Cl, --I, --NH 2 , or --NH 3 + X - , where X - is Br - , Cl - or I - , and where R 2 , R 3 and R 4 , which may be the same or different, are --H or 3 H.
Claim 2
Dependent Claim
61 words
A compound having the formula: ##STR18## in which R 1 is --OH, --Br, --Cl, --I, --NH 2 , or --NH 3 + X - , where X - is Br - , Cl - or I - , and where R 2 , R 3 and R 4 , which may be the same or different, are --H or 3 H.
Claim 3
Dependent Claim
34 words
A compound having the formula: ##STR19## in which R 1 is --Br or --I, and where R 2 and R 3 , which may be the same or different, are --H or 3 H.
Claim 4
Dependent Claim
34 words
A compound having the formula: ##STR19## in which R 1 is --Br or --I, and where R 2 and R 3 , which may be the same or different, are --H or 3 H.
Claim 5
Dependent Claim
82 words
A compound having the formula: ##STR20## in which R 1 is ##STR21## where n is a whole number between 6 and 16, where R 2 , R 3 and R 4 , in which may be the same or different, are --H or 3 H, and where R 5 =R 7 =--CH 3 , --C 2 H 5 , --C 3 H 7 or --C 4 H 9 and R 6 may have the formula --H or: ##STR22## or a salt thereof.
Claim 6
Dependent Claim
82 words
A compound having the formula: ##STR20## in which R 1 is ##STR21## where n is a whole number between 6 and 16, where R 2 , R 3 and R 4 , in which may be the same or different, are --H or 3 H, and where R 5 =R 7 =--CH 3 , --C 2 H 5 , --C 3 H 7 or --C 4 H 9 and R 6 may have the formula --H or: ##STR22## or a salt thereof.
Claim 7
Dependent Claim
78 words
A compound having the formula: ##STR23## in which R 1 is ##STR24## where n is a whole number between 6 and 16, where R 2 and R 3 , which may be the same or different, are --H or 3 H, and where R 4 =R 6 =--CH 3 , --C 2 H 5 , --C 3 H 7 or --C 4 H 9 and R 5 may have the formula --H or: ##STR25## or a salt thereof.
Claim 8
Dependent Claim
78 words
A compound having the formula: ##STR23## in which R 1 is ##STR24## where n is a whole number between 6 and 16, where R 2 and R 3 , which may be the same or different, are --H or 3 H, and where R 4 =R 6 =--CH 3 , --C 2 H 5 , --C 3 H 7 or --C 4 H 9 and R 5 may have the formula --H or: ##STR25## or a salt thereof.
Claim 9
Dependent Claim
26 words
A compound having the formula: ##STR26## in which R 1 and R 2 , which may be the same or different, are --H or 3 H.
Claim 10
Dependent Claim
26 words
A compound having the formula: ##STR26## in which R 1 and R 2 , which may be the same or different, are --H or 3 H.
Claim 11
Dependent Claim
40 words
A compound having the formula: ##STR27## in which R 1 and R 2 , which may be the same or different, are --CH 3 , --C 2 H 5 , --C 3 H 7 or --C 4 H 9 .
Claim 12
Dependent Claim
40 words
A compound having the formula: ##STR27## in which R 1 and R 2 , which may be the same or different, are --CH 3 , --C 2 H 5 , --C 3 H 7 or --C 4 H 9 .
Claim 13
Dependent Claim
14 words
A compound having the formula: ##STR28## in which X is --Cl, --Br or --I.
Claim 14
Dependent Claim
14 words
A compound having the formula: ##STR28## in which X is --Cl, --Br or --I.
Claim 15
Dependent Claim
35 words
A compound having the formula: ##STR29## in which X is --Cl, --Br or --I and R is --CH 3 , --C 2 H 5 , --C 3 H 7 or --C 4 H 9 .
Claim 16
Dependent Claim
35 words
A compound having the formula: ##STR29## in which X is --Cl, --Br or --I and R is --CH 3 , --C 2 H 5 , --C 3 H 7 or --C 4 H 9 .
Claim 17
Dependent Claim
29 words
A compound having the formula: ##STR30## in which R 1 , R 2 and R 3 , which may be the same or different, are --H or 3 H.
Claim 18
Dependent Claim
29 words
A compound having the formula: ##STR30## in which R 1 , R 2 and R 3 , which may be the same or different, are --H or 3 H.
Claim 19
Dependent Claim
22 words
A complex, comprising one or more of the compounds of claims 1, 2, 3, 4, 5, or 9, coupled to nucleic acid.
Claim 20
Dependent Claim
11 words
A complex as in claim 10 wherein said coupling is non-covalent.
Claim 21
Dependent Claim
11 words
A complex as in claim 10 wherein said coupling is covalent.
Claim 22
Dependent Claim
24 words
A complex as in claim 10 wherein said nucleic acid is selected from the group consisting of viral, bacterial, fungal, mycoplasmal and protozoan DNA.
Claim 23
Dependent Claim
14 words
A complex as in claim 10 wherein said nucleic acid is human nucleic acid.
Claim 24
Dependent Claim
24 words
A complex, comprising 5-aminomethylisopsoralen coupled to nucleic acid at a level of addition greater than one 5-aminomethylisopsoralen molecule per fifty nucleic acid base pairs.
Claim 25
Dependent Claim
24 words
A complex, comprising 5-aminomethylisopsoralen coupled to nucleic acid at a level of addition greater than one 5-aminomethylisopsoralen molecule per fifty nucleic acid base pairs.
Claim 26
Dependent Claim
24 words
A complex, comprising 4'-aminomethyl-4,5'-dimethylisopsoralen coupled to nucleic acid at a level of addition greater than one 4'-aminomethyl-4,5'-dimethylisopsoralen molecule per fifty nucleic acid base pairs.
Claim 27
Dependent Claim
24 words
A complex, comprising 4'-aminomethyl-4,5'-dimethylisopsoralen coupled to nucleic acid at a level of addition greater than one 4'-aminomethyl-4,5'-dimethylisopsoralen molecule per fifty nucleic acid base pairs.
Claim 28
Dependent Claim
14 words
A complex as in claims 15 or 16 wherein said nucleic acid is DNA.
Claim 29
Dependent Claim
14 words
A complex as in claims 15 or 16 wherein said nucleic acid is RNA.
Claim 30
Independent Claim
24 words
A method of synthesizing 5-methylisopsoralen, comprising the steps: a) providing 7-hydroxy-5-methylcoumarin; and b) treating 7-hydroxy-5-methylcoumarin with a haloethylene carbonate so that 5-methylisopsoralen is produced.
Claim 31
Independent Claim
24 words
A method of synthesizing 5-methylisopsoralen, comprising the steps: a) providing 7-hydroxy-5-methylcoumarin; and b) treating 7-hydroxy-5-methylcoumarin with a haloethylene carbonate so that 5-methylisopsoralen is produced.
Claim 32
Independent Claim
34 words
A method of synthesizing 5-methylisopsoralen, comprising the steps: a) providing 7-hydroxy-5-methylcoumarin; b) treating 7-hydroxy-5-methylcoumarin with a haloacetaldehyde diethylacetal so that 7-(2,2-diethoxyethyloxy)-5-methylcoumarin is produced; and c) treating 7-(2,2-diethoxyethyloxy)-5-methylcoumarin with acid so that 5-methylisopsoralen is produced.
Claim 33
Independent Claim
34 words
A method of synthesizing 5-methylisopsoralen, comprising the steps: a) providing 7-hydroxy-5-methylcoumarin; b) treating 7-hydroxy-5-methylcoumarin with a haloacetaldehyde diethylacetal so that 7-(2,2-diethoxyethyloxy)-5-methylcoumarin is produced; and c) treating 7-(2,2-diethoxyethyloxy)-5-methylcoumarin with acid so that 5-methylisopsoralen is produced.
Claim 34
Independent Claim
36 words
A method of synthesizing 4,5'-dimethylisopsoralen, comprising the steps: a) treating 7-(β-haloallyloxy)-4-methylcoumarin with heat and an alkyl anhydride to yield the esterified Claisen product 7-alkylcarbonyloxy-8-(β-haloallyl)-4-methylcoumarin; and b) treating 7-alkylcarbonyloxy-8-(β-halo-allyl)-4-methylcoumarin with an acid so that 4,5'-dimethylisopsoralen is produced.
Claim 35
Independent Claim
36 words
A method of synthesizing 4,5'-dimethylisopsoralen, comprising the steps: a) treating 7-(β-haloallyloxy)-4-methylcoumarin with heat and an alkyl anhydride to yield the esterified Claisen product 7-alkylcarbonyloxy-8-(β-haloallyl)-4-methylcoumarin; and b) treating 7-alkylcarbonyloxy-8-(β-halo-allyl)-4-methylcoumarin with an acid so that 4,5'-dimethylisopsoralen is produced.
Claim 36
Independent Claim
59 words
A method of synthesizing 4'-aminomethyl-4,5'dimethylisopsoralen, comprising the steps: a) treating 7-alkylcarbonyloxy-8-(β-haloallyl)-4-methylcoumarin with an acid so that 4,5'-dimethylisopsoralen is produced; b) treating 4,5'-dimethylisopsoralen with a halomethyl methylether to yield a halomethyl derivative; c) treating the halomethyl derivative with an alkali salt of phthalimide to yield the corresponding phthalimidomethyl derivative; and d) treating the phthalimidomethyl derivative with hydrazine to yield 4'-aminomethyl-4,5'dimethylisopsoralen.
Claim 37
Independent Claim
59 words
A method of synthesizing 4'-aminomethyl-4,5'dimethylisopsoralen, comprising the steps: a) treating 7-alkylcarbonyloxy-8-(β-haloallyl)-4-methylcoumarin with an acid so that 4,5'-dimethylisopsoralen is produced; b) treating 4,5'-dimethylisopsoralen with a halomethyl methylether to yield a halomethyl derivative; c) treating the halomethyl derivative with an alkali salt of phthalimide to yield the corresponding phthalimidomethyl derivative; and d) treating the phthalimidomethyl derivative with hydrazine to yield 4'-aminomethyl-4,5'dimethylisopsoralen.
Claim 38
Independent Claim
32 words
A method of synthesizing 4'-aminomethyl-4,5'dimethylisopsoralen, comprising the steps: a) providing 4,5'-dimethylisopsoralen; b) reacting 4,5'-dimethylisopsoralen with a nitrogen donor so that 4'-phthalimidomethyl-4,5'-dimethylisopsoralen is produced; and c) treating 4'-phthalimidomethyl-4,5'-dimethylisopsoralen with hydrazine to yield 4'-aminomethyl-4,5'dimethylisopsoralen.
Claim 39
Independent Claim
32 words
A method of synthesizing 4'-aminomethyl-4,5'dimethylisopsoralen, comprising the steps: a) providing 4,5'-dimethylisopsoralen; b) reacting 4,5'-dimethylisopsoralen with a nitrogen donor so that 4'-phthalimidomethyl-4,5'-dimethylisopsoralen is produced; and c) treating 4'-phthalimidomethyl-4,5'-dimethylisopsoralen with hydrazine to yield 4'-aminomethyl-4,5'dimethylisopsoralen.
Claim 40
Dependent Claim
24 words
The method of claim 23 wherein said nitrogen donor may be selected from the group consisting of phthalimide salts, N-hydroxymethyl phthalimide and hexamethylene tetramine.
Claim 41
Independent Claim
48 words
A method of synthesizing 4'-aminomethyl-4,5'dimethylisopsoralen, comprising the steps: a) providing 4'-hydroxymethyl-4,5'-dimethylisopsoralen; b) treating 4'-hydroxymethyl-4,5'-dimethylisopsoralen with a thionyl halide so that 4'-halomethyl-4,5'-dimethylisopsoralen is produced; c) treating 4'-halomethyl-4,5'-dimethylisopsoralen with an alkali salt of phthalimide so that 4'-phthalimidomethyl-4,5'-dimethylisopsoralen is produced; and d) treating 4'-phthalimidomethyl-4,5'-dimethylisopsoralen with hydrazine so that 4'-aminomethyl-4,5'-dimethylisopsoralen is produced.
Claim 42
Independent Claim
48 words
A method of synthesizing 4'-aminomethyl-4,5'dimethylisopsoralen, comprising the steps: a) providing 4'-hydroxymethyl-4,5'-dimethylisopsoralen; b) treating 4'-hydroxymethyl-4,5'-dimethylisopsoralen with a thionyl halide so that 4'-halomethyl-4,5'-dimethylisopsoralen is produced; c) treating 4'-halomethyl-4,5'-dimethylisopsoralen with an alkali salt of phthalimide so that 4'-phthalimidomethyl-4,5'-dimethylisopsoralen is produced; and d) treating 4'-phthalimidomethyl-4,5'-dimethylisopsoralen with hydrazine so that 4'-aminomethyl-4,5'-dimethylisopsoralen is produced.
Claim 43
Independent Claim
36 words
A method of synthesizing 5-aminomethyl-isopsoralen, comprising the steps: a) providing a 5-halomethylisopsoralen; b) treating said 5-halomethylisopsoralen with hexamethylenetetramine to create a hexamethylene-tetramine derivative; and c) treating said hexamethylenetetramine derivative with acid so that 5-aminomethylisopsoralen is produced.
Claim 44
Independent Claim
36 words
A method of synthesizing 5-aminomethyl-isopsoralen, comprising the steps: a) providing a 5-halomethylisopsoralen; b) treating said 5-halomethylisopsoralen with hexamethylenetetramine to create a hexamethylene-tetramine derivative; and c) treating said hexamethylenetetramine derivative with acid so that 5-aminomethylisopsoralen is produced.
Claim 45
Dependent Claim
16 words
The method of claim 26, wherein said providing of a 5-halomethylisopsoralen comprises synthesizing 5-bromomethylisopsoralen from 5-methylisopsoralen.
Claim 46
Independent Claim
65 words
A method of synthesizing radiolabelled 5-aminomethylisopsoralen, comprising the steps: a) providing formylisopsoralen; b) treating said formylisopsoralen with radillabelled sodium borohydride to yield the radiolabelled hydroxymethylisopsoralen; c) treating hydroxymethylisopsoralen with a thionyl halide to yield the corresponding radiolabelled halomethylisopsoralen; d) treating said halomethylisopsoralen with hexamethylene tetramine to create the corresponding radiolabelled hexamethylenetetramine derivative; and e) treating said hexamethylenetetramine derivative with an acid to produce radiolabelled 5-aminomethylisopsoralen.
Claim 47
Independent Claim
65 words
A method of synthesizing radiolabelled 5-aminomethylisopsoralen, comprising the steps: a) providing formylisopsoralen; b) treating said formylisopsoralen with radillabelled sodium borohydride to yield the radiolabelled hydroxymethylisopsoralen; c) treating hydroxymethylisopsoralen with a thionyl halide to yield the corresponding radiolabelled halomethylisopsoralen; d) treating said halomethylisopsoralen with hexamethylene tetramine to create the corresponding radiolabelled hexamethylenetetramine derivative; and e) treating said hexamethylenetetramine derivative with an acid to produce radiolabelled 5-aminomethylisopsoralen.
Claim 48
Independent Claim
28 words
A method for labelling nucleic acid, comprising the steps: a) providing labelled 5-aminomethylisopsoralen and nucleic acid; and b) coupling said labelled 5-aminomethylisopsoralen to said nucleic acid by photoactivation.
Claim 49
Independent Claim
28 words
A method for labelling nucleic acid, comprising the steps: a) providing labelled 5-aminomethylisopsoralen and nucleic acid; and b) coupling said labelled 5-aminomethylisopsoralen to said nucleic acid by photoactivation.
Claim 50
Independent Claim
45 words
A method for inhibiting template-dependent enzymatic synthesis of nucleic acid, comprising the steps: a) providing one or more furocoumarins and nucleic acid; and b) coupling said one or more furocoumarins to said nucleic acid by photoactivation, so that it cannot be replicated by Taq polymerase.
Claim 51
Independent Claim
45 words
A method for inhibiting template-dependent enzymatic synthesis of nucleic acid, comprising the steps: a) providing one or more furocoumarins and nucleic acid; and b) coupling said one or more furocoumarins to said nucleic acid by photoactivation, so that it cannot be replicated by Taq polymerase.
Claim 52
Independent Claim
45 words
A method for inhibiting template-dependent enzymatic synthesis of nucleic acid, comprising the steps: a) providing one or more furocoumarins and nucleic acid; and b) coupling said one or more furocoumarins to said nucleic acid by photoactivation, so that it cannot be replicated by T4 polymerase.
Claim 53
Independent Claim
45 words
A method for inhibiting template-dependent enzymatic synthesis of nucleic acid, comprising the steps: a) providing one or more furocoumarins and nucleic acid; and b) coupling said one or more furocoumarins to said nucleic acid by photoactivation, so that it cannot be replicated by T4 polymerase.
Claim 54
Independent Claim
26 words
The method as recited in claims 30 or 31 wherein said one or more furocoumarins are selected from the group consisting of 5-methylisopsoralen, 5-aminomethylisopsoralen and 4'-aminomethyl-4,5'-dimethylisopsoralen.
Claim 55
Independent Claim
45 words
A method for inhibiting template-dependent enzymatic synthesis of nucleic acid, comprising the steps: a) providing one or more isopsoralens and nucleic acid; and b) coupling said one or more isopsoralens to said nucleic acid by photoactivation, so that it cannot be replicated by reverse transcriptase.
Claim 56
Independent Claim
45 words
A method for inhibiting template-dependent enzymatic synthesis of nucleic acid, comprising the steps: a) providing one or more isopsoralens and nucleic acid; and b) coupling said one or more isopsoralens to said nucleic acid by photoactivation, so that it cannot be replicated by reverse transcriptase.
Claim 57
Dependent Claim
24 words
The method as recited in claim 33 wherein said one or more isopsoralens are selected from the group consisting of 5-methylisopsoralen, 5-aminomethylisopsoralen and 4'-aminomethyl-4,5'-dimethylisopsoralen.
Claim 58
Independent Claim
41 words
A method for inhibiting template-dependent enzymatic synthesis of nucleic acid, comprising the steps: a) providing 4'-aminomethyl-4,5'-dimethylisopsoralen and nucleic acid; and b) binding said 4'-aminomethyl-4,5'-dimethylisopsoralen to nucleic acid by photoactivation, so that it cannot be replicated by E. coli DNA polymerase I.
Claim 59
Independent Claim
41 words
A method for inhibiting template-dependent enzymatic synthesis of nucleic acid, comprising the steps: a) providing 4'-aminomethyl-4,5'-dimethylisopsoralen and nucleic acid; and b) binding said 4'-aminomethyl-4,5'-dimethylisopsoralen to nucleic acid by photoactivation, so that it cannot be replicated by E. coli DNA polymerase I.
Claim 60
Independent Claim
38 words
A method for inhibiting template-dependent enzymatic synthesis of nucleic acid, comprising the steps: a) providing 4'-aminomethyl-4,5'-dimethylisopsoralen and nucleic acid; and b) binding said 4'-aminomethyl-4,5'-dimethylisopsoralen to nucleic acid by photoactivation, so that it cannot be replicated by Klenow polymerase.
Claim 61
Independent Claim
38 words
A method for inhibiting template-dependent enzymatic synthesis of nucleic acid, comprising the steps: a) providing 4'-aminomethyl-4,5'-dimethylisopsoralen and nucleic acid; and b) binding said 4'-aminomethyl-4,5'-dimethylisopsoralen to nucleic acid by photoactivation, so that it cannot be replicated by Klenow polymerase.
Claim 62
Independent Claim
32 words
A method for modifying a target sequence, comprising the steps: a) providing nucleic acid containing a target sequence; b) providing 5-aminomethylisopsoralen; and c) coupling said 5-aminomethylisopsoralen to said target sequence by photoactivation.
Claim 63
Independent Claim
32 words
A method for modifying a target sequence, comprising the steps: a) providing nucleic acid containing a target sequence; b) providing 5-aminomethylisopsoralen; and c) coupling said 5-aminomethylisopsoralen to said target sequence by photoactivation.
Claim 64
Independent Claim
37 words
A method for detecting a target sequence, comprising the steps: a) providing nucleic acid containing a target sequence; b) providing 5-aminomethylisopsoralen; c) coupling said 5-aminomethylisopsoralen to said target sequence by photoactivation; and d) detecting said target sequence.
Claim 65
Independent Claim
37 words
A method for detecting a target sequence, comprising the steps: a) providing nucleic acid containing a target sequence; b) providing 5-aminomethylisopsoralen; c) coupling said 5-aminomethylisopsoralen to said target sequence by photoactivation; and d) detecting said target sequence.
Claim 66
Independent Claim
38 words
A method for detecting a target sequence, comprising the steps: a) providing nucleic acid containing a target sequence; b) providing 4'-aminomethyl-4,5'-dimethyl-isopsoralen; and c) coupling said 4'-aminomethyl-4,5'-dimethylisopsoralen to said target sequence by photoactivation; and d) detecting said target sequence.
Claim 67
Independent Claim
38 words
A method for detecting a target sequence, comprising the steps: a) providing nucleic acid containing a target sequence; b) providing 4'-aminomethyl-4,5'-dimethyl-isopsoralen; and c) coupling said 4'-aminomethyl-4,5'-dimethylisopsoralen to said target sequence by photoactivation; and d) detecting said target sequence.
Claim 68
Independent Claim
28 words
A method of synthesizing photoproduct, comprising the steps: a) providing one or more furocoumarins; and b) irradiating said one or more furocoumarins in the absence of nucleic acid.
Claim 69
Independent Claim
28 words
A method of synthesizing photoproduct, comprising the steps: a) providing one or more furocoumarins; and b) irradiating said one or more furocoumarins in the absence of nucleic acid.
Claim 70
Dependent Claim
23 words
The method as recited in claim 40 wherein said one or more furocoumarins are selected from the group consisting of 5-aminomethylisopsoralen and 4'-aminomethyl-4,5'-dimethylisopsoralen.
Claim 71
Independent Claim
57 words
A method of binding photoproduct to nucleic acid, comprising the sequential steps: a) providing in any order: i) one or more furocoumarin derivatives, and ii) nucleic acid; b) exposing said furocoumarin derivatives to activating wavelengths of electromagnetic radiation; c) mixing said irradiated furocoumarin derivatives with said nucleic acid in the absence of activating wavelengths of electromagnetic radiation.
Claim 72
Independent Claim
57 words
A method of binding photoproduct to nucleic acid, comprising the sequential steps: a) providing in any order: i) one or more furocoumarin derivatives, and ii) nucleic acid; b) exposing said furocoumarin derivatives to activating wavelengths of electromagnetic radiation; c) mixing said irradiated furocoumarin derivatives with said nucleic acid in the absence of activating wavelengths of electromagnetic radiation.
References Cited (Backward Citations)
US4124598A
Cited
US4169204A
Cited
US4196281A
Cited
US4312883A
Cited
US4398031A
Cited
US4683202A
Cited
US4683202B1
Cited
US4683195A
Cited
US4683195B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-18 | 1996-02-17 | 1996-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-18 | 2000-02-17 | 2000-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-18 | 2004-02-17 | 2004-08-18 | $7700.00 | Window Closed / Lapsed |