4732-10-9Relevant academic research and scientific papers
A method of preparing intermediates of luck sha neiwei
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Paragraph 0045; 0048; 0055; 0062, (2018/03/26)
The invention provides a preparation method for a fosamprenir intermediate. The preparation method comprises the following steps: taking benzyl cyanide as a raw material, and performing steps of nitrile hydrolysis, acylation, reaction with a Grignard reagent, ammonization, cyclizing and the like for synthesizing (2R,3S)-1,2-epoxy-3-t-butyloxycarborylamino-4-phenyl butane. The method is reasonable in process, simple to operate, low in cost and high in yield; with the method, industrialization can be well realized and the production efficiency is improved.
Convenient method for synthesis of N-protected α-amino epoxides: Key intermediates for HIV protease inhibitors
Blacker, A. John,Roy, Mita,Hariharan, Sivaramkrishanan,Headley, Catherine,Upare, Abhay,Jagtap, Ashutosh,Wankhede, Karuna,Mishra, Sushil Kumar,Dube, Dagadu,Bhise, Sanjay,Vishwasrao, Sandesh,Kadam, Nitin
, p. 331 - 338 (2013/01/10)
A convenient method for synthesis of 2R,3S and 2S,3S N-Boc phenylalanine epoxides using readily available allylamine is described. Previous methods employed multistep synthetic routes from l-phenyl alanine that include use of m-chloroperbenzoic acid (m-CPBA) and a chromatographic method for purification of the desired diastereomers. Column purification could be eliminated by bringing in much improvement in the existing process. The process was further enhanced by replacing m-CPBA with oxone, an ecofriendly reagent advantageous for commercial application. The overall green process discussed involves the recovery and recycling of enantiomers of chiral allyl amines and judicial separation of diastereomers of the epoxides using simple economical methods.
Antiretroviral hydrazine derivatives
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, (2008/06/13)
The invention relates to compounds of formula STR1 and salts, pharmaceutical compositions, intermediates and processes of preparation thereof.
Use of compositions for combating tumour diseases
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, (2008/06/13)
The present invention relates to the use of inhibitors of HIV aspartate proteases, such as HIV-1- or HIV-2-protease, and their salts and to prodrugs for inhibiting the growth of tumors, especially those tumors which do not respond to the inhibition of HIV
