Patent US4818276A successfully refreshed from Google Patents.
Patent US4713346A successfully refreshed from Google Patents.
US4713346A
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Formation of analyzable boron containing adducts
Assignee: Boston Children's Hospital
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Filing: 1986-02-03
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Granted: 1987-12-15
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Expires: 2006-02-03
Abstract
Abstract A method of forming analyzable adducts in a mixture of compounds by contacting the mixture with a boron reagent having the formula of either <IMAGE> where each X and Y is, independently, an alkyl group of 12 or fewer carbons or an aryl group of 6-20 carbons; or BZ3, where each Z is, independently, an alkyl group of 12 or fewer carbons, or an aryl group of 6-20 carbons.
Inventors
- 👤 Paul M. Gallop
- 👤 Edward Henson
- 👤 Rudolf Fluckiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:56
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/92; G01N33/52; G01N33/68; G01N33/6803; G01N33/6806; G01N33/6809; Y; Y10; Y10T; Y10T436/00; Y10T436/14; Y10T436/141111; Y10T436/142222; Y10T436/145555; Y10T436/147777; Y10T436/17; Y10T436/173845; Y10T436/20; Y10T436/200833; Y10T436/201666; Y10T436/203332; Y10T436/24
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
148 words
A method of forming and analyzing analyzable adducts in a mixture of compounds, wherein the method comprises contacting a mixture containing one or more compounds containing the functionality ##STR24## with a boron reagent such that the boron reagent reacts with said one or more compounds to form analyzable adducts, wherein --OH is either a hydroxy or the --OH portion of a carboxyl group, and N is part of an amino group, an imino group, or an aromatic heterocycle, and the boron reagent has the formula of either ##STR25## where each X and Y is, independently, an alkyl group of 12 or fewer carbons or an aryl group of 6-20 carbons; or BZ 3 , where each Z is, independently, an alkyl group of 12 or fewer carbons, or an aryl group of 6-20 carbons; and analyzing said analyzable adducts either by a chromatographic technique or by mass spectroscopy.
Claim 2
Independent Claim
148 words
A method of forming and analyzing analyzable adducts in a mixture of compounds, wherein the method comprises contacting a mixture containing one or more compounds containing the functionality ##STR24## with a boron reagent such that the boron reagent reacts with said one or more compounds to form analyzable adducts, wherein --OH is either a hydroxy or the --OH portion of a carboxyl group, and N is part of an amino group, an imino group, or an aromatic heterocycle, and the boron reagent has the formula of either ##STR25## where each X and Y is, independently, an alkyl group of 12 or fewer carbons or an aryl group of 6-20 carbons; or BZ 3 , where each Z is, independently, an alkyl group of 12 or fewer carbons, or an aryl group of 6-20 carbons; and analyzing said analyzable adducts either by a chromatographic technique or by mass spectroscopy.
Claim 3
Dependent Claim
12 words
The method of claim 1, wherein said mixture is a protein hydrolysate.
Claim 4
Dependent Claim
12 words
The method of claim 1, wherein said mixture contains different α-amino acids.
Claim 5
Dependent Claim
10 words
The method of claim 1, wherein said mixture contains 2-carboxypyrazines.
Claim 6
Dependent Claim
11 words
The method of claim 1, wherein said reagent is 1,1-diphenylborinic acid.
Claim 7
Dependent Claim
15 words
The method of claim 1, wherein said mixture contains different γ-glutamyl peptides or β-aspartyl peptides.
Claim 8
Dependent Claim
77 words
The method of claim 1, wherein said mixture contains a primary amine, and said method comprises, prior to said contacting said mixture with said boron reagent, contacting said mixture with either an α-ketoacid or glyoxylic acid, and NaCNBH 4 , such that the α-ketoacid or glyoxylic acid reacts with the primary amine in the presence of the NaCNBH 4 to form an α-amino acid which contains said funtionality and in which the α-amine is a secondary amine.
Claim 9
Dependent Claim
15 words
The method of claim 1, wherein said analyzable adducts are analyzed by a chromatographic technique.
Claim 10
Dependent Claim
14 words
The method of claim 1, wherein said analyzable adducts are analyzed by mass spectroscopy.
Claim 11
Dependent Claim
25 words
The method of claim 9, wherein said analysis by mass spectroscopy comprises comparing the mass spectra of said adducts to the mass spectra of controls.
Claim 12
Dependent Claim
24 words
The method of claim 1, wherein said analyzable adducts are analyzed by a chromatographic technique, wherein said chromatographic technique is high performance liquid chromatography.
Claim 13
Dependent Claim
24 words
The method of claim 1, wherein said analyzable adducts are analyzed by a said chromatographic technique, wherein said chromatographic technique is thin layer chromatography.
Claim 14
Independent Claim
19 words
The method of claims 11 or 12, wherein during said analyzing step said adducts are detected by UV absorption.
Claim 15
Dependent Claim
28 words
The method of claim 12, wherein said analysis by thin layer chromatography comprises comparing the R f 's of said adducts to the R f 's of controls.
Claim 16
Dependent Claim
32 words
The method of claim 11, wherein said analysis by high performance liquid chromatography comprises determining the retention times of said adducts and comparing said retention times to the retention times of controls.
Claim 17
Dependent Claim
18 words
The method of claim 15, comprising the additional step of determining the quantity of each said adduct formed.
Claim 18
Dependent Claim
10 words
The method of claim 1, wherein said reagent is triphenylboron.
Claim 19
Dependent Claim
12 words
The method of claim 17, wherein said triphenylboron is generated in situ.
Claim 20
Dependent Claim
14 words
The method of claim 18, wherein said in situ generation is from sodium tetraphenylboron.
Claim 21
Dependent Claim
90 words
The method of claim 1, wherein said mixture contains a primary or secondary amine or a primary or secondary alcohol, and said method comprises, prior to said contacting said mixture with said boron reagent, contacting said mixture with a compound having the functionality of either ##STR26## where N is part of an amino group, an imino group, or an aromatic heterocycle, such that the compound which contacts said mixture reacts with the primary or secondary amine or the primary or secondary alcohol to form a compound containing the functionality ##STR27##
Claim 22
Dependent Claim
16 words
The method of claim 20, wherein said compound which contacts said mixture has the structure ##STR28##
Claim 23
Dependent Claim
12 words
The method of claim 20, wherein said mixture contains a steroidal alcohol.
Claim 24
Dependent Claim
16 words
The method of claim 20, wherein said compound which contacts said mixture is an aromatic heterocycle.
Claim 25
Dependent Claim
16 words
The method of claim 23, wherein said compound which contacts said mixture has the structure ##STR29##
Claim 26
Dependent Claim
82 words
The method of claim 1, wherein said mixture contains a ketone or aldehyde, and said method comprises, prior to said contacting said mixture with said boron reagent, contacting said mixture with a compound that, in addition to having said functionality, also contains a hydrazide group, such that the compound which contacts said mixture reacts with the ketone or aldehyde to form a compound that contains both said functionality and ##STR30## where C 1 is the carbonyl carbon of said ketone or aldehyde.
Claim 27
Dependent Claim
17 words
The method of claim 25, wherein said compound that contacts said mixture is a nitrogen-containing aromatic heterocycle.
Claim 28
Dependent Claim
16 words
The method of claim 26, wherein said compound that contacts said mixture has the structure ##STR31##
Claim 29
Dependent Claim
18 words
The method of claim 25, wherein said compound that contacts said mixture is a hydrazide containing α-amino acid.
Claim 30
Dependent Claim
16 words
The method of claim 28, wherein said amino acid is either γ-glutamyl hydrazide or β-aspartyl hydrazide.
References Cited (Backward Citations)
DD200485A1
Cited
JPS5872054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |