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1260403-59-5

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1260403-59-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1260403-59-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,0,4,0 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1260403-59:
(9*1)+(8*2)+(7*6)+(6*0)+(5*4)+(4*0)+(3*3)+(2*5)+(1*9)=115
115 % 10 = 5
So 1260403-59-5 is a valid CAS Registry Number.

1260403-59-5Relevant articles and documents

PROCESS FOR MAKING CGRP RECEPTOR ANTAGONIST

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Page/Page column 68-69, (2011/02/24)

The invention encompasses a novel process for making 2-[(8R)-8-(3,5-Difluorophenyl)-10-oxo-6,9-diazaspiro[4.5]dec-9-yl]-N-[(2R)-2'-oxo-1,1',2',3-tetrahydrospiro[indene-2,3'-pyrrolo[2,3-b]pyridin]-5-yl]acetamide, which is a CGRP receptor antagonist useful for the treatment of migraine, using an asymmetric phase-transfer catalysis route. The invention also encompasses an efficient and practical synthesis of the (R)-acid intermediate, and generates the benzylic stereocenter in an enantioselective manner.

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