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(S)-4-[(R)-2-Acetoxy-1-(6-methanesulfonyloxy-7-methyl-benzo[1,3]dioxol-4-yl)-ethyl]-2-(3-benzyloxy-2-iodo-4-methoxy-5-methyl-benzyl)-5-methyl-3,6-dioxo-piperazine-1-carboxylic acid tert-butyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

442663-50-5

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442663-50-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 442663-50-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,6,6 and 3 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 442663-50:
(8*4)+(7*4)+(6*2)+(5*6)+(4*6)+(3*3)+(2*5)+(1*0)=145
145 % 10 = 5
So 442663-50-5 is a valid CAS Registry Number.

442663-50-5Downstream Products

442663-50-5Relevant academic research and scientific papers

PROCESS FOR TOTAL SYNTHESIS OF ECTEINASCIDINS AND INTERMEDIATES THEREFOR

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Page 24, (2008/06/13)

An intermediate compound for total synthesis of ecteinascidins comprising, a compound represented by general formula 2 having thioether group at C4 site, and the substituent R2 of N12 site is trichloroethoxicarbonyl (Troc) to which various substituents can be introduced by mild condition, further having 10 members ring structure which can be converted to a ring of other numbered members.

Total synthesis of ecteinascidin 743

Endo, Atsushi,Yanagisawa, Arata,Abe, Masanao,Tohma, Shigemitsu,Kan, Toshiyuki,Fukuyama, Tohru

, p. 6552 - 6554 (2007/10/03)

The total synthesis of ecteinascidin 743 (1), an extremely potent antitumor agent, has been accomplished. The synthesis features Ugi's 4CC reaction, intramolecular Heck reaction, phenol-aldehyde cyclization, and acid-induced intramolecular sulfide formation. Copyright

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