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US4336188A
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Method for the preparation of macromolecularized adenine derivatives
Assignee: Anic SpA
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Filing: 1978-02-22
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Granted: 1982-06-22
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Expires: 1998-02-22
Abstract
Abstract A method is disclosed for preparing functionalized adenine derivatives, said method comprising the step of reacting a compound which contains an adenine nucleus which has been halogen substituted in the 8-position, with a compound having the general formula M +- S--(CH 2 ) n --COO - M + wherein M + is the ion of an alkali metal and n is an integer, the reaction being carried out in a polar aprotic solvent. Procedures for preparing macromolecularized adenine compounds are also indicated by reacting a functionalized adenine derivative with a polymer which has at least one primary or secondary aminic group in its structure. This is a division of application Ser. No. 705,012 filed July 14, 1976, U.S. Pat. No. 4,091,203.
Inventors
- 👤 Piergiorgio Zappelli
- 👤 Antonio Rossodivita
- 👤 Rosario Pappa
- 👤 Luciano Re
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:17
CPC Classifications
C; C07; C07D; C07D473/00; C07D473/26; C07D473/32; C07D473/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
204 words
A method for the preparation of macromolecularized adenine derivatives which comprises the steps of reacting a compound which contains a halogen atom in the 8-position and which has the formula, ##STR12## wherein X is a halogen and R is the non-adenine residue of the compound, with a di-alkali metal salt of an omega-mercaptocarboxylic acid at a temperature in a range of from about 20° C. to about 60° C. under anhydrous conditions and forming a functionalized adenine derivative compound, converting the functionalized adenine derivative compound to its corresponding free acid containing an adenine radical and having the formula ##STR13## and in which the adenine radical is selected from the group consisting of nicotinoylamide adenine dinucleotide, nicotinoylamide adenine dinucleotide phosphate, adenosine triphosphate, adenosine diphosphate, adenosine monophosphate, adenosine, and adenine, and condensing the functionalized adenine free acid derivative with a polymer selected from the group consisting of polysine, omega-aminoalkyl polyanilamides, polysaccharide esters of omega-aminoalkyl carbamic acids, polyvinyl-amine, omega-aminoalkyl esters and omega-aminoalkylamides of polyglutamic acid, aminoalkyl silanized glass microsphenes, and polyethyleneimine in the presence of a condensing agent selected from water-soluble or insoluble carbodiimides in an aqueous environment or in a mixture of water and water-soluble organic solvent at a temperature between 5° C. and 50° C.
Claim 2
Independent Claim
204 words
A method for the preparation of macromolecularized adenine derivatives which comprises the steps of reacting a compound which contains a halogen atom in the 8-position and which has the formula, ##STR12## wherein X is a halogen and R is the non-adenine residue of the compound, with a di-alkali metal salt of an omega-mercaptocarboxylic acid at a temperature in a range of from about 20° C. to about 60° C. under anhydrous conditions and forming a functionalized adenine derivative compound, converting the functionalized adenine derivative compound to its corresponding free acid containing an adenine radical and having the formula ##STR13## and in which the adenine radical is selected from the group consisting of nicotinoylamide adenine dinucleotide, nicotinoylamide adenine dinucleotide phosphate, adenosine triphosphate, adenosine diphosphate, adenosine monophosphate, adenosine, and adenine, and condensing the functionalized adenine free acid derivative with a polymer selected from the group consisting of polysine, omega-aminoalkyl polyanilamides, polysaccharide esters of omega-aminoalkyl carbamic acids, polyvinyl-amine, omega-aminoalkyl esters and omega-aminoalkylamides of polyglutamic acid, aminoalkyl silanized glass microsphenes, and polyethyleneimine in the presence of a condensing agent selected from water-soluble or insoluble carbodiimides in an aqueous environment or in a mixture of water and water-soluble organic solvent at a temperature between 5° C. and 50° C.
Claim 3
Dependent Claim
21 words
A method according to claim 1 for the preparation of nicotinoylamide-8-(polyethyleneimine-3-carboxyethylthio) adenine dinucleotide which comprises reacting nicotinoylamide-8-(carboxyethylthio) adenine dinucleotide with polyethyleneimine.
Claim 4
Dependent Claim
21 words
A method according to claim 1 for the preparation of nicotinoylamide-8-(polysine-2-carbonylethylthio) adenine dinucleotide which comprises reacting nicotinoylamide-8-(carboxyethylthio) adenine dinucleotide with polysine.
Claim 5
Dependent Claim
23 words
A method according to claim 1 for the preparation of nicotinoylamide-8-(aminohexyl-sephrose-2-carbonylethylthio) adenine dinucleotide which comprises reacting nicotinoylamide-8-(carboxyethylthio) adenine dinucleotide with aminohexyl sepharose 4B.
Claim 6
Dependent Claim
23 words
A method according to claim 1 for the preparation of nicotinoylamide-8-(polyethyleneimine-2-carbonylethylthio) adenine dinucleotide phosphate which comprises reacting nicotinoylamide-8-(2-carboxyethylthio) adenine dinucleotide phosphate with polyethyleneimine.
References Cited (Backward Citations)
US2946781A
Cited
US3989812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |