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8-Acetoxymethyl-4-benzyloxy-7,8-dihydro-3H-pyrrolo[3,2-e]indole-1,2,6-tricarboxylic acid 6-tert-butyl ester 1,2-dimethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

156905-81-6

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156905-81-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156905-81-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,9,0 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 156905-81:
(8*1)+(7*5)+(6*6)+(5*9)+(4*0)+(3*5)+(2*8)+(1*1)=156
156 % 10 = 6
So 156905-81-6 is a valid CAS Registry Number.

156905-81-6Relevant articles and documents

Synthesis and antitumor activity of novel cyclopropapyrroloindole (CPI) derivatives bearing bis(methoxycarbonyl) groups

Fukuda, Yasumichi,Oomori, Yasuo,Kusama, Yoshie,Terashima, Shiro

, p. 749 - 752 (1997)

The title synthesis was achieved by employing oxidative cyclization of the enaminodiester prepared by Michael addition of the 5-aminoindoline with dimethyl acetylenedicarboxylate, as a key step. Some of these novel bis(methoxycarbonyl)cyclopropapynroloindole (MC2CPI) derivatives 9c, d and their seco-chlorides 18c, d were found to exhibit prominent cytotoxicity and antitumor activity against P388 murine leukemia.

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