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129376-64-3

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129376-64-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129376-64-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,3,7 and 6 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 129376-64:
(8*1)+(7*2)+(6*9)+(5*3)+(4*7)+(3*6)+(2*6)+(1*4)=153
153 % 10 = 3
So 129376-64-3 is a valid CAS Registry Number.

129376-64-3Relevant articles and documents

48. Diastereoselective Spirocyclization of C-(Alkyloxycarbonyl)formimines of 2-Substituted 1H-Indole-3-ethanamines (= Tryptamines): Basic Studies

Freund, Ralf,Mahboobi, Siavosh,Noack, Klaus,Schoenholzer, Peter,Bernauer, Karl

, p. 439 - 454 (2007/10/02)

C-(Alkoxycarbonyl)formimines of type 15-18 were derived from the 2-substituted tryptamines 2, 9, 10, and 11 and transformed with tosyl chloride into tricyclic 3-spiroindoles of types 19-22 (Scheme 3).The influence of the homochiral alkoxy moieties A-D on the stereochemical outcome of this reaction was studied.Good-to-excellent diastereoselectivities were observed with the (-)-8-(phenylmenth-3-yl)oxy group (B) as homochiral auxiliary.The structures of the tricycles 4, (2'R,3S)-19B, and (2'S,3R)-20C were established by X-ray analysis, the structures of the others by NOE and CD studies, and by chemical correlation.Possibilities to explain the steric course of the spirocyclizations are discussed.

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