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197142-32-8

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197142-32-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 197142-32-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,1,4 and 2 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 197142-32:
(8*1)+(7*9)+(6*7)+(5*1)+(4*4)+(3*2)+(2*3)+(1*2)=148
148 % 10 = 8
So 197142-32-8 is a valid CAS Registry Number.

197142-32-8Relevant articles and documents

Structural Properties and Stereochemically Distinct Folding Preferences of 4,5-cis and trans-Methano- L -Proline Oligomers: The Shortest Crystalline PPII-Type Helical Proline-Derived Tetramer

Berger, Gilles,Vilchis-Reyes, Miguel,Hanessian, Stephen

, p. 13268 - 13272 (2015)

The synthesis, structural properties, and folding patterns of a series of L-proline methanologues represented by cis- and trans-4,5-methano-L-proline amides and their oligomers are reported as revealed by X-ray crystallography, circular dichroism measurements, and DFT calculations. We disclose the first example of a crystalline tetrameric proline congener to exhibit a polyproline II helical conformation. Experimental evidence of PPII-type helical arrangement (both in solution and in the solid state) of cis-4,5-methano-L-proline oligomers is supported by theoretical calculations reflecting the extent of n→π? stabilization of the trans-amide conformation.

SUBSTITUTED HETEROCYCLIC SULFONAMIDE COMPOUNDS USEFUL AS TRPA1 MODULATORS

-

, (2015/04/28)

The invention is concerned with the compounds of formula I or II: and salts thereof. In addition, the present invention relates to methods of manufacturing and methods of using the compounds of formula I or II as well as pharmaceutical compositions containing such compounds. The compounds may be useful in treating diseases and conditions mediated by TRPA1, such as pain.

HEPATITIS C INHIBITOR COMPOUNDS

-

, (2012/05/04)

Compounds of Formula (I) and (II) wherein R1, R2, R3, R6, A and A' are defined herein. The compounds are useful as inhibitors of the function of NS5A protein encoded by HCV for the treatment of hepatitis C viral infection.

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