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131696-66-7

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131696-66-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131696-66-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,6,9 and 6 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 131696-66:
(8*1)+(7*3)+(6*1)+(5*6)+(4*9)+(3*6)+(2*6)+(1*6)=137
137 % 10 = 7
So 131696-66-7 is a valid CAS Registry Number.

131696-66-7Relevant articles and documents

Cross coupling of 3-bromopyridine and sulfonamides (R1NHSO2R2·R1 = H, Me, alkyl; R2 = alkyl and aryl) catalyzed by CuI/1,3-di(pyridin-2-yl)propane-1,3-dione

Han, Xiaojun

experimental part, p. 360 - 362 (2010/03/24)

N-(3-Pyridinyl)-substituted secondary and tertiary sulfonamides have been synthesized in good to excellent yields by the reaction of 3-bromopyridine with primary and secondary alkyl and aryl sulfonamides (MeSO2NH2, MeSO2NHMe, TolSO2NH2, TolSO2NHMe, 1,3-propanesultam, and 1,4-butanesultam), catalyzed by CuI (20 mol %) and 1,3-di(pyridin-2-yl)propane-1,3-dione (20 mol %) with K2CO3 (200 mol %) in DMF (0.17 M for ArBr) at 110-120 °C over 36-40 h. 2-Bromopyridine, 4-bromopyridine, and a wide variety of substituted phenyl bromides can also be successfully coupled with sulfonamides under these reaction conditions.

LACTAM-CONTAINING CYCLIC DIAMINES AND DERIVATIVES AS FACTOR XA INHIBITORS

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Page/Page column 114, (2010/02/08)

The present application describes lactam-containing cyclic diamines and derivatives thereof of Formula I: or pharmaceutically acceptable salt forms thereof, wherein M is a non-aromatic carbocycle or heterocycle. Compounds of the present invention are useful as inhibitors of trysin-like serine proteases, specifically factor Xa.

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