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177767-31-6

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177767-31-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177767-31-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,7,6 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 177767-31:
(8*1)+(7*7)+(6*7)+(5*7)+(4*6)+(3*7)+(2*3)+(1*1)=186
186 % 10 = 6
So 177767-31-6 is a valid CAS Registry Number.

177767-31-6Downstream Products

177767-31-6Relevant articles and documents

Total asymmetric synthesis of the potent immunosuppressive marine natural product microcolin A

Decicco, Carl P.,Grover, Paul

, p. 3534 - 3541 (2007/10/03)

The total asymmetric synthesis of the potent immunosuppressive compound microcolin A is reported. The synthesis establishes the absolute stereochemistry of microcolin A as C-36R, C-38R, and C-4S on the basis of the diastereoselective preparation of all four possible diastereomers of the lipid region (fragment A) and diastereoselective synthesis of fragment C starting from natural L-(S)-alanine. The strategy involves a convergent assemblage of three optically pure fragments and is amenable to chemical modifications to examine structural analogs for biological study.

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