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1601480-52-7

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1601480-52-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1601480-52-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,1,4,8 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1601480-52:
(9*1)+(8*6)+(7*0)+(6*1)+(5*4)+(4*8)+(3*0)+(2*5)+(1*2)=127
127 % 10 = 7
So 1601480-52-7 is a valid CAS Registry Number.

1601480-52-7Relevant articles and documents

Construction of 3-arylpropylamines using Heck arylations. the total synthesis of cinacalcet hydrochloride, alverine, and tolpropamine

Prediger, Patrícia,Da Silva, Allan Ribeiro,Correia, Carlos Roque Duarte

, p. 3333 - 3341 (2014/05/06)

New synthetic routes toward the commercial drugs cinacalcet hydrochloride, alverine, and tolpropamine were developed using a Heck-Matsuda arylation as the key-step. Several reaction conditions were evaluated for the Heck-Matsuda reaction using allylamine derivatives and arenediazonium salts. For cinacalcet hydrochloride, N-formylamide provided the best result, furnishing the synthetic target in a very high overall yield (75% over five steps). For alverine, the best results were obtained using a double Heck-Matsuda strategy, providing alverine in an excellent overall yield (69%) from N-acetyl diallylamine in three steps. Tolpropamine was synthesized in a 46% yield over five steps using an efficient reductive Heck-Matsuda arylation between p-bromo-methylcinnamate with 3-chloro tolyldiazonium salt, generating the ,diaryl propionate that was converted to tolpropamine.

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