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137618-52-1

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137618-52-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137618-52-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,6,1 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 137618-52:
(8*1)+(7*3)+(6*7)+(5*6)+(4*1)+(3*8)+(2*5)+(1*2)=141
141 % 10 = 1
So 137618-52-1 is a valid CAS Registry Number.

137618-52-1Relevant articles and documents

MORPHOLINE AND 1,4-OXAZEPANE AMIDES AS SOMATOSTATIN RECEPTOR SUBTYPE 4 (SSTR4) AGONISTS

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Page/Page column 88, (2016/06/06)

The invention relates to morpholine and 1,4-oxazepane amide derivatives of general formula (I), which are agonists of somatostatin receptor subtype 4 (SSTR4), useful for preventing or treating medical disorders related to SSTR4. In addition, the invention

Efficient lipase-catalyzed kinetic resolution of 4-arylmethoxy-3-hydroxybutanenitriles: application to an expedient synthesis of a statin intermediate

Sun, Fenglai,Xu, Gang,Wu, Jianping,Yang, Lirong

, p. 2907 - 2913 (2007/10/03)

The kinetic resolution of 4-arylmethoxy-3-hydroxybutanenitriles was investigated by lipase-catalyzed transesterification in organic solvents. A high enantioselectivity was obtained via reaction with vinyl acetate in a mixed solvent (n-heptane/acetonitrile 1:1), which was catalyzed by the lipase from Artgribacter sp. A better selectivity was demonstrated when the number of substituents on the aryl ring increased. (S)-4-Arylmethoxy-3-hydroxybutanenitriles can be obtained with enantiomeric excesses of up to 98.0% by this method. Furthermore we have developed a novel route to synthesize tert-butyl (S)-6-benzyloxy-5-hydroxy-3-oxohexanoate, a key intermediate for the preparation of HMG-CoA reductase inhibitors (statins).

Nucleophilic Addition to Cyclic 1,2-Sulfites

Carlsen, Per H.,Aase, Kristin J.

, p. 617 - 619 (2007/10/02)

Addition of heteroatom nucleophiles has been shown to attack at either the C5- or the S-atom sites in 4-(benzyloxymethyl)-1,3-dioxa-2-thiolane 2-oxide.No C4-reactivity was observed.The regioselectivity depended on the type of nucleophile.

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