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(S)-1-{(S)-2-[(S)-2-[((S)-5-Oxo-pyrrolidine-2-carbonyl)-amino]-4-(trityl-carbamoyl)-butyryloxy]-propionyl}-pyrrolidine-2-carboxylic acid tert-butyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

203783-49-7

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203783-49-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203783-49-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,7,8 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 203783-49:
(8*2)+(7*0)+(6*3)+(5*7)+(4*8)+(3*3)+(2*4)+(1*9)=127
127 % 10 = 7
So 203783-49-7 is a valid CAS Registry Number.

203783-49-7Downstream Products

203783-49-7Relevant academic research and scientific papers

Towards the semi-synthesis of didemnin M. solution and solid phase synthesis of the pseudotetrapeptide: pGlu-Glnψ[COO]Ala-Pro-OH

Wen, James J.,Crews, Craig M.

, p. 779 - 782 (2007/10/03)

Two approaches, solution and solid phase syntheses, were developed for the synthesis of the pseudotetrapeptide, pGlu-Glnψ[COO]Ala-Pro-OH. Both approaches gave comparable synthetic yields, but the latter approach provided an expedient entry to the synthesis of the target compound with higher product purity.

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