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187600-79-9

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187600-79-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187600-79-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,6,0 and 0 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 187600-79:
(8*1)+(7*8)+(6*7)+(5*6)+(4*0)+(3*0)+(2*7)+(1*9)=159
159 % 10 = 9
So 187600-79-9 is a valid CAS Registry Number.

187600-79-9Relevant articles and documents

One-step highly diastereoselective synthesis of γ-aminoalkyl-substituted γ-butyrolactones by an asymmetric samarium-mediated ketyl-alkene coupling reaction

Fukuzawa, Shin-Ichi,Miura, Manabu,Saitoh, Takahide

, p. 2042 - 2044 (2003)

The samarium(II) iodide mediated reaction of N,N-dibenzyl-protected (S)-α-amino aldehydes with (1S,2R)-N-methylephedrinyl acrylate gave the (4R, 1′S)-γ-(aminoalkyl)-γ-butyrolactones in good yields with high diastereoselectivities (up to 80% de); (4R, 1′S)γ-amino-(2-phenylethyl)-γ-butyrolactone (6a), which should be a potent precursor for γ-secretase inhibitors, was obtained with high de value.

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