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1107647-82-4

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1107647-82-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1107647-82-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,0,7,6,4 and 7 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1107647-82:
(9*1)+(8*1)+(7*0)+(6*7)+(5*6)+(4*4)+(3*7)+(2*8)+(1*2)=144
144 % 10 = 4
So 1107647-82-4 is a valid CAS Registry Number.

1107647-82-4Relevant articles and documents

Chemoenzymatic synthesis of the potential antihypertensive agent (2R,2′S)-β-hydroxyhomometoprolol

Regla, Ignacio,Luviano-Jardon, Axel,Demare, Patricia,Hong, Enrique,Torres-Gavilan, Alejandro,Lopez-Munguia, Agustin,Castillo, Edmundo

experimental part, p. 2439 - 2442 (2009/04/11)

The kinetic resolution of 1-chloro-3-[4-(2-methoxyethyl)phenoxy]-2-propanol rac-4 with Novozym 435 and vinyl stearate, a key step in the gram-scale synthesis of (2S)-2-[[(2R)-2-hydroxy-3-[4-(2-methoxyethyl)phenoxy]propyl]amino]-1-butanol (R,S)-1 a potent antihypertensive agent currently under investigation, is reported here. Our approach differs from the previously reported synthesis, which involves a tedious and poorly effective fractional crystallization of (R,S)-1. This novel approach incorporates an enzymatic resolution for the efficient preparation of the oxirane precursor (R)-3. The two main advantages arising from this strategy are the high enantioselectivity of the enzymatic process and the facilitated recovery of the hydrophobic stearate intermediate (S)-5.

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