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149451-81-0

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149451-81-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 149451-81-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,4,5 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 149451-81:
(8*1)+(7*4)+(6*9)+(5*4)+(4*5)+(3*1)+(2*8)+(1*1)=150
150 % 10 = 0
So 149451-81-0 is a valid CAS Registry Number.

149451-81-0Relevant articles and documents

Expedient asymmetric synthesis of (2S,3S)-Boc-phenylalanine epoxide, a key intermediate for the synthesis of biologically active compounds

Badorrey, Ramon,Diaz-de-Villegas, Maria D.,Galvez, Jose A.

, p. 2226 - 2229 (2009)

The asymmetric synthesis of (2S,3S)-3-(tert-butoxycarbonyl)amino-1,2-epoxy-4-phenylbutane [(2S,3S)-Boc-phenylalanine epoxide] has been achieved in six steps and in 55% overall yield from the N-benzylimine derived from (R)-2,3-O-isopropylidene-glyceraldehy

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