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153899-37-7

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153899-37-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 153899-37-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,3,8,9 and 9 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 153899-37:
(8*1)+(7*5)+(6*3)+(5*8)+(4*9)+(3*9)+(2*3)+(1*7)=177
177 % 10 = 7
So 153899-37-7 is a valid CAS Registry Number.

153899-37-7Relevant articles and documents

Total synthesis of (±)-, (-)-, and (+)-oudemansin X

Umezawa,Nozawa,Nagumo,Akita

, p. 1111 - 1118 (2007/10/02)

Three kinds of oudemansin X, (-)-1, (+)-1 and (±)-1, were totally synthesized. The key point in the present chiral synthesis was the enantioselective acetylation of the racemic alcohols, (±)-5 and (±)-8, using lipase in an organic solvent. The synthetic (-)-1 was found to exhibit strong antifungal activity against several molds and yeasts.

Total Synthesis of Antibiotic (-)-Oudemansin X Utilizing L-Quebrachitol as a Chiral Pool

Chida, Noritaka,Yamada, Ken,Ogawa, Seiichiro

, p. 687 - 690 (2007/10/02)

The stereoselective conversion of naturally occurring optically active cyclitol, L-quebrachitol (2), into antifungal (E)-β-methoxyacrylate, oudemansin X is described.This synthesis fully confirmed the proposed absolute configuration of the antibiotic and

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