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157831-24-8

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157831-24-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157831-24-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,3 and 1 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 157831-24:
(8*1)+(7*5)+(6*7)+(5*8)+(4*3)+(3*1)+(2*2)+(1*4)=148
148 % 10 = 8
So 157831-24-8 is a valid CAS Registry Number.

157831-24-8Downstream Products

157831-24-8Relevant articles and documents

Asymmetric total synthesis of natural pyrrolizidine alkaloid, (+)-alexine

Yoda,Katoh,Takabe

, p. 7661 - 7665 (2000)

The total synthesis of the potent glycosidase inhibitor (+)-alexine with five contiguous stereogenic centres [(1R,2R,3R,7S,7aS)-3-hydroxymethyl-1,2,7-trihydroxypyrrolizidine alkaloid] is described featuring the efficient and stereodefined novel elaboratio

Stereocontrolled synthesis of a trihydroxylated pyrrolizidine alkaloid, 7-deoxyalexine

Yoda, Hidemi,Asai, Fumihito,Takabe, Kunihiko

, p. 1001 - 1003 (2007/10/03)

An enantiomerically and diastereomerically pure route has been developed for the asymmetric synthesis of (1R,2R,3R,7aS)-trihydroxylated pyrrolizidine alkaloid, 7-deoxyalexine, featuring the stereocontrolled elaboration of the functionalized homochiral lactam derived from 2,3,5-tri-O-obenzylol-β-D- arabinofuranose.

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