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1332391-11-3

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1332391-11-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1332391-11-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,2,3,9 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1332391-11:
(9*1)+(8*3)+(7*3)+(6*2)+(5*3)+(4*9)+(3*1)+(2*1)+(1*1)=123
123 % 10 = 3
So 1332391-11-3 is a valid CAS Registry Number.

1332391-11-3Downstream Products

1332391-11-3Relevant articles and documents

Method for preparing

-

, (2021/08/25)

The invention relates to a method for preparing an intermediate and an epalutamide, wherein the compound is represented by the formula (5). The preparation method of the compound represented by the formula (5) comprises the following steps: preparing compound represented by formula (3) by using the compound as an intermediate. Compound of formula (4) and Thithio reagent is reacted to form the compound represented by formula (5). The thio reagent is a phenyl thioformate. A combination of one or more N-thiocarbonyldiimidazole, 1,1 -thiocarbonyl DI-2 (1H) - pyridine. The inventors have found that 4 - (1 - carboxamide - cyclobutylamino) -2 - fluoro - N - methyl - benzamide, 5 - amino -2 - cyano -3 - trifluoromethyl pyridine and sodium thiochloroformate can be obtained in a higher yield than the prior art by one-step reaction under appropriate conditions. Based on this finding, the present invention was obtained and presented by further study.

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