Cas 326476-71-5,1-(2-benzyloxymethyl-but-2-enoyl)-pyrrolidine-2-carboxylic acid methyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 326476-71-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,6,4,7 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 326476-71:
(8*3)+(7*2)+(6*6)+(5*4)+(4*7)+(3*6)+(2*7)+(1*1)=155
155 % 10 = 5
So 326476-71-5 is a valid CAS Registry Number.

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326476-71-5Relevant articles and documents

Enantioselective synthesis of (S)-N,N-diethyl-2-formyl-2-(methoxymethoxy)butyramide, a key intermediate for 20(S)-camptothecin analogues, via asymmetric bromolactonization

Jew, Sang-Sup,Roh, Eun-Young,Kim, Hee-Jin,Goo Kim, Myoung,Park, Hyeung-Geun

, p. 3985 - 3994 (2007/10/03)

A new enantioselective synthetic method for enantiomerically pure (S)-N,N-diethyl-2-formyl-2-(methoxymethoxy)butyramide 5, a versatile key intermediate has been developed employing asymmetric bromolactonization using (S)-proline as the chiral auxiliary. C

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326476-71-5