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1442635-87-1

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1442635-87-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1442635-87-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,2,6,3 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1442635-87:
(9*1)+(8*4)+(7*4)+(6*2)+(5*6)+(4*3)+(3*5)+(2*8)+(1*7)=161
161 % 10 = 1
So 1442635-87-1 is a valid CAS Registry Number.

1442635-87-1Relevant articles and documents

Asymmetric total synthesis of fusarentin 6-methyl ether and its biomimetic transformation into fusarentin 6,7-dimethyl ether, 7-O-demethylmonocerin, and (+)-monocerin

Fang, Bowen,Xie, Xingang,Zhao, Changgui,Jing, Peng,Li, Huilin,Wang, Zhengshen,Gu, Jixiang,She, Xuegong

, p. 6338 - 6343 (2013/07/25)

A concise asymmetric total synthesis of a fusarentin ether (1) with sequential biomimetic transformation to its analogues fusarentin 6,7-dimethyl ether (2), 7-O-demethylmonocerin (3), and (+)-monocerin (4) has been accomplished. The cis-fused furobenzopyranones of 7-O-demethylmonocerin (3) and (+)-monocerin (4) were efficiently constructed via an intramolecular nucleophilic trapping of a quinonemethide intermediate, which was obtained by benzylic oxidation of fusarentin 6-methyl ether (1) using hypervalent iodine reagent.

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