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[4-Chloro-2-((S)-3-cyclopropyl-1-hydroxy-1-trifluoromethyl-prop-2-ynyl)-phenyl]-carbamic acid 4-nitro-phenyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

211563-39-2

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211563-39-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 211563-39-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,5,6 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 211563-39:
(8*2)+(7*1)+(6*1)+(5*5)+(4*6)+(3*3)+(2*3)+(1*9)=102
102 % 10 = 2
So 211563-39-2 is a valid CAS Registry Number.

211563-39-2Downstream Products

211563-39-2Relevant academic research and scientific papers

Practical asymmetric synthesis of Efavirenz (DMP 266), an HIV-1 reverse transcriptase inhibitor

Pierce, Michael E.,Parsons Jr., Rodney L.,Radesca, Lilian A.,Lo, Young S.,Silverman, Stuart,Moore, James R.,Islam, Qamrul,Choudhury, Anusuya,Fortunak, Joseph M. D.,Nguyen, Dieu,Luo, Chi,Morgan, Susan J.,Davis, Wayne P.,Confalone, Pat N.,Chen, Cheng-Yi,Tillyer, Richard D.,Frey, Lisa,Tan, Lushi,Xu, Feng,Zhao, Dalian,Thompson, Andrew S.,Corley, Edward G.,Grabowski, Edward J. J.,Reamer, Robert,Reider, Paul J.

, p. 8536 - 8543 (2007/10/03)

A highly enantioselective and practical synthesis of the HIV-1 reverse transcriptase inhibitor efavirenz (1) is described. The synthesis proceeds in 62% overall yield in seven steps from 4-chloroaniline (6) to give efavirenz (1) in excellent chemical and optical purity. A novel, enantioselective addition of Li-cyclopropyl acetylide (4a) to p-methoxybenzyl-protected ketoaniline 3a mediated by (1R,2S)-N-pyrrolidinylnorephedrine lithium alkoxide (5a) establishes the stereogenic center in the target with a remarkable level of stereocontrol.

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