Patent EP0233403B1 successfully refreshed from Google Patents.
EP0233403B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Photo-labile protecting agents and method
Assignee: Medical Research Council
•
Filing: 1986-11-27
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Granted: 1991-01-02
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Expires: 2006-11-27
Abstract
No abstract record available.
Inventors
- 👤 David Rostron Trentham
- 👤 Gordon Paterson Reid
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 17:18
CPC Classifications
C; C07; C07C; C07C251/00; C07C251/72; C07H; C07H21/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
31 words
A diazo compound having the formula where X is an optionally substituted aromatic group which carries a N0 2 group in the ortho-position and Y is an optionally substituted hydrocarbon group.
Claim 2
Dependent Claim
31 words
A diazo compound having the formula where X is an optionally substituted aromatic group which carries a N0 2 group in the ortho-position and Y is an optionally substituted hydrocarbon group.
Claim 3
Dependent Claim
16 words
A hydrazone compound having the formula where X and Y are as defined in claim 1.
Claim 4
Dependent Claim
14 words
A compound as claimed in claim 1 or claim 2, wherein X is o-nitrophenyl.
Claim 5
Dependent Claim
16 words
A compound as claimed in any one of claims 1 to 3, wherein Y is methyl.
Claim 6
Independent Claim
36 words
A method which comprises reacting an organic compound having a reactive hydrogen atom, or an organic compound in the conjugate base form, with a diazo compound as claimed in any of claims 1, 3 or 4.
Claim 7
Dependent Claim
25 words
A method as claimed in claim 5, wherein the reactive hydrogen atom is part of a group selected from phosphate, thiophosphate, phosphonate, carboxyl, and phenol.
Claim 8
Dependent Claim
22 words
A method as claimed in claim 5 or claim 6, wherein the reaction is performed in a shaken mixed water/organic solvent system.
Claim 9
Independent Claim
17 words
A method which comprises photochemically decomposing the reaction product of any one of claims 5 to 7.
Claim 10
Independent Claim
68 words
A method comprising the steps:- providing a caged organic compound which is the reaction product of an organic comp6und having a reactive hydrogen atom with a diazo compound as claimed in any one of claims 1, 3 or 4. introducing the caged organic compound into a biological system and, photochemically decomposing the caged organic compound so as to form the organic compound in situ in the biological system.
Claim 11
Dependent Claim
76 words
A purification method comprising the steps:- providing a starting mixture containing an organic compound having a reactive hydrogen atom and reacting the said organic compound with a diazo compound as claimed in any one of claims 1, 3 or 4, so as to form a protected compound in the mixture, subjecting the mixture to chromatography and recovering the protected organic compound in purified form, and photochemically decomposing the protected compound and recovering the purified organic compound.
References Cited (Backward Citations)
No citation records indexed.
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