799241-76-2

N-[(1S,2R)-2-hydroxy-3-[(2-methylpropyl)[(4-nitrophenyl)sulfonyl]amino]-1-(phenylmethyl)propyl]carbamic Acid (3R,3aS,6aR)-Hexahydrofuro[2,3-b]furan-3-yl Ester is an intermediate in the synthesis of 1-epi-Darvunavir (D193505), a second generation HIV-1-protease inhibitor.