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1357385-52-4

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1357385-52-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1357385-52-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,7,3,8 and 5 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1357385-52:
(9*1)+(8*3)+(7*5)+(6*7)+(5*3)+(4*8)+(3*5)+(2*5)+(1*2)=184
184 % 10 = 4
So 1357385-52-4 is a valid CAS Registry Number.

1357385-52-4Relevant articles and documents

Concise total synthesis of dihydrocorynanthenol, protoemetinol, protoemetine, 3-epi-protoemetinol and emetine

Lin, Shuangzheng,Deiana, Luca,Tseggai, Abrehet,Cordova, Armando

, p. 398 - 408 (2012/02/16)

A concise asymmetric assembly of secologanine tryptamine and dopamine alkaloids by means of a one-pot three-component cascade reaction methodology is disclosed. This is demonstrated by the expeditious total syntheses of (-)-dihydrocorynanthenol, (-)-protoemetinol, (-)-protoemetine, (-)-3-epi-protoemetinol, and emetine (3-6 steps). The biomimetic synthetic strategy involved the following key steps: (i) One-pot three-component highly enantioselective catalytic Michael/Pictet-Spengler/lactamization cascade reactions; (ii) One-pot tandem Swern oxidation/Wittig sequences; (iii) One-pot tandem hydrogenation sequences. Copyright

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