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(S)-3-(4-amino-phenyl)-2-(3-oxo-spiro[3.5]non-1-en-1-ylamino)-propionic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

644995-09-5

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644995-09-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 644995-09-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,4,9,9 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 644995-09:
(8*6)+(7*4)+(6*4)+(5*9)+(4*9)+(3*5)+(2*0)+(1*9)=205
205 % 10 = 5
So 644995-09-5 is a valid CAS Registry Number.

644995-09-5Relevant articles and documents

Imidazopyridines as VLA-4 integrin antagonists

Phillips, David J.,Davenport, Richard J.,Demaude, Thierry A.,Galleway, Fiona P.,Jones, Mark W.,Knerr, Laurent,Perry, Benjamin G.,Ratcliffe, Andrew J.

scheme or table, p. 4146 - 4149 (2009/04/07)

We describe a novel series of imidazopyridine substituted phenylalanines which are potent VLA-4 antagonists. A wide variety of substituents are tolerated as replacements for the pendant 3-pyridyl ring. A clear structure-activity relationship was identifie

PROCESS FOR THE PREPARATION OF PHENYLALANINE ENAMIDE DERIVATIVES

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Page 46, (2010/02/06)

A process for the preparation of a class of phenylalanine enamide derivatives is described formula (1) wherein: Ar1 is an optionally substituted aromatic or heteroaromatic group; L2 is a linker group selected from -N(R4)- [where R4 is a hydrogen atom or an optionally substituted straight or branched C1-6alkyl group], -CON(R4)-, or -S(O)2N(R4)-; R1 is a carboxylic acid (-CO2H) or a derivative or biostere thereof; R2 is a hydrogen atom or a C1-6alkyl group; Rx, Ry and Rz which may be the same or different is each an atom or group -L1(Alk1)n(R3)v; and the salts, solvates, hydrates and N-oxides thereof; which comprises reacting a compound of formula (2): wherein: Qa is a group -N(R4)H; and the salts, solvates, hydrates and N-oxides thereof; with a compound Ar1W wherein W is a group selected from X1 (wherein X1 is a leaving atom or group), -COX2 (wherein X2 is a halogen atom or a -OH group) or -SO2 X3 (in which X3 is a halogen atom).

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