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1202649-49-7

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1202649-49-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1202649-49-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,2,6,4 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1202649-49:
(9*1)+(8*2)+(7*0)+(6*2)+(5*6)+(4*4)+(3*9)+(2*4)+(1*9)=127
127 % 10 = 7
So 1202649-49-7 is a valid CAS Registry Number.

1202649-49-7Relevant 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.

experimental part, p. 2226 - 2229 (2010/03/03)

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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