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1056469-56-7

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1056469-56-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1056469-56-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,5,6,4,6 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1056469-56:
(9*1)+(8*0)+(7*5)+(6*6)+(5*4)+(4*6)+(3*9)+(2*5)+(1*6)=167
167 % 10 = 7
So 1056469-56-7 is a valid CAS Registry Number.

1056469-56-7Relevant articles and documents

Fully enzymatic resolution of chiral amines: Acylation and deacylation in the presence of Candida antarctica lipase B

Ismail, Hilda,Lau, Rute Madeira,Van Rantwijk, Fred,Sheldon, Roger A.

experimental part, p. 1511 - 1516 (2009/08/07)

A fully enzymatic methodology for the resolution of chiral amines has been demonstrated. Candida antarctica lipase B (CaLB)-catalyzed acylation with N-methyl-and N-phenylglycine, as well as analogues having the general formula R1-X-CH2CO2R2 (R1 = Me, Ph; X = O, S) afforded the corresponding enantioenriched amides, which were subsequently enzymatically hydrolyzed. Surprisingly, CaLB also proved to be the catalyst of choice for this latter step. The heteroatom in the acyl donor profoundly influences both the enzymatic acylation and deacylation; the O-substituted reagents performed best with regard to enantioselectivity as well as reaction rate in synthesis and hydrolysis.

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