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158897-42-8

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158897-42-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 158897-42-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,8,9 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 158897-42:
(8*1)+(7*5)+(6*8)+(5*8)+(4*9)+(3*7)+(2*4)+(1*2)=198
198 % 10 = 8
So 158897-42-8 is a valid CAS Registry Number.

158897-42-8Downstream Products

158897-42-8Relevant articles and documents

Synthesis of (6E)-8-Thia- and (14E)-13-Thia-2,3-oxidosqualene: Inhibitors of 2,3-Oxidosqualene-Lanosterol Cyclase

Zheng, Yi Feng,Oehlschlager, Allan C.,Hartman, Peter G.

, p. 5803 - 5809 (2007/10/02)

Synthesis of (6E)-8-thia-2,3-oxidosqualene (22) and (14E)-13-thia-2,3-oxidosqualene (34) as inhibitors of 2,3-oxidosqualene-lanosterol cyclase are reported.Synthesis of 22 required the stereospecific generation of a vinyl sulfide.This was achieved by a new coupling of a benzenethiosulfonate (15) and a lithiated vinyl iodide (18).Synthesis of 34 involved similar coupling of benzenethiosulfonate 29 with lithium reagent obtained from vinyl iodide 33.The required (E)-vinyl iodides 18 and 33 were prepared by zirconium-catalyzed carboalumination of 4-pentyn-1-ol, (16) and 2,6-dimethyl-2(E),6(E)-dien-10-yne (32) respectively.Both 22 and 34 inhibited 2,3-oxidosqualene-lanosterol cyclase from Candida albicans with IC 50 values of 0.68 and 45 μM, respectively.

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