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474671-03-9

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474671-03-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 474671-03-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,4,6,7 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 474671-03:
(8*4)+(7*7)+(6*4)+(5*6)+(4*7)+(3*1)+(2*0)+(1*3)=169
169 % 10 = 9
So 474671-03-9 is a valid CAS Registry Number.

474671-03-9Relevant articles and documents

Alkynyliodonium salts in organic synthesis. Development of a unified strategy for the syntheses of (-)-agelastatin A and (-)-agelastatin B

Feldman, Ken S.,Saunders, Joe C.,Wrobleski, Michelle Laci

, p. 7096 - 7109 (2007/10/03)

The total syntheses of natural agelastatin A and agelastatin B were accomplished via a strategy that utilized an alkynyliodonium salt → alkylidenecarbene → cyclopentene transformation to convert a relatively simple amino alcohol derivative to the functionalized core of the agelastatin system. Subsequent manipulations delivered debromoagelastatin, which served as a precursor to both agelastatin A and agelastatin B. Alkylidenecarbene insertion chemoselectivity issues were explored en route to the final targets.

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