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1394825-78-5

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1394825-78-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1394825-78-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,4,8,2 and 5 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1394825-78:
(9*1)+(8*3)+(7*9)+(6*4)+(5*8)+(4*2)+(3*5)+(2*7)+(1*8)=205
205 % 10 = 5
So 1394825-78-5 is a valid CAS Registry Number.

1394825-78-5Downstream Products

1394825-78-5Relevant articles and documents

Sequential electrophilic trifluoromethanesulfanylation-cyclization of tryptamine derivatives: Synthesis of C(3)-trifluoromethanesulfanylated hexahydropyrrolo[2,3-b]indoles

Yang, Yi,Jiang, Xueliang,Qing, Feng-Ling

, p. 7538 - 7547 (2012/11/07)

A practical and efficient synthesis of C(3)-trifluoromethanesulfanylated hexahydropyrrolo[2,3-b]indoles 5 from tryptamine derivatives was described. The features of this synthesis included electrophilic activation of C(3) of tryptamine derivatives with CF3S+ ? and cascade ring cyclization by carbamate nucleophile attacking at C(2). Surprisingly, when Lewis acid (BF3·OEt2) was used as activator instead of proton acid (TsOH·H2O) for the electrophilic trifluoromethanesulfanylation of tryptamine derivatives, the uncyclized product 6 was formed preferentially. This sequential trifluoromethanesulfanylation- cyclization protocol was used to synthesize several pyrrolidinoindolinic alkaloid analogues. The cytotoxicity activities of these trifluoromethanesulfanylated alkaloid analogues were evaluated against three cancer cell lines (K562, HeLa, L929).

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