160230-47-7

Upstream product

• 121-60-8 p-acetylaminobenzenesulfonyl chloride 
• 160232-08-6 (2R,3S)-3-tert-butoxycarbonylamino-1-isobutylamino-4-phenyl-2-butanol 
• 72225-62-8 N-(4-Isobutylsulfamoyl-phenyl)-acetamide 
• 98760-08-8 (1-oxiranyl-2-phenylethyl)carbamic acid tert-butyl ester 

Downstream Products

• 169280-56-2 4-amino-N-(2R,3S)(3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzenesulfonamide 
• 206361-99-1 darunavir 

Relevant academic research and scientific papers

PROCESS FOR THE PREPARATION OF DARUNAVIR

The present invention provides a cost effective and industrially feasible process for preparation of Darunavir (I). Also described is the novel salt of intermediate 4-Amino-N- ((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzene sulfonamide acid salt (VIII) and its use in the preparation of Darunavir. Formula (I) and (VII).

PROCESS FOR PREPARATION OF DARUNAVIR

Provided are a process for preparation of darunavir or solvates or a pharmaceutically acceptable salt thereof substantially free of bisfuranyl impurities and a process for preparation of amorphous darunavir using the darunavir propionate solvate.

PROCESS FOR THE PREPARATION OF SULFONAMIDES USEFUL AS RETROVIRAL PROTEASE INHIBITORS

The present invention relates to a process for the preparation of sulfonamides useful as retroviral protease inhibitors.

Sulfonamide inhibitors of aspartyl protease

The present invention relates to a novel class of sulfonamides which are aspartyl protease inhibitors. In one embodiment, this invention relates to a novel class of HIV aspartyl protease inhibitors characterized by specific structural and physicochemical features. This invention also relates to pharmaceutical compositions comprising these compounds. The compounds and pharmaceutical compositions of this invention are particularly well suited for inhibiting HIV-1 and HIV-2 protease activity and consequently, may be advantageously used as anti-viral agents against the HIV-1 and HIV-2 viruses. This invention also relates to methods for inhibiting the activity of HIV aspartyl protease using the compounds of this invention and methods for screening compounds for anti-HIV activity.