Fosamprenavir Impurity 1

Chemical Name: Bis[(3S)-tetrahydro-3-furanyl](3S,4R,10R,11S)-4,10- bis({[(4-aminophenyl)sulfonyl](2-methylpropyl)amino}methyl)-6,8-dihydroxy-3,11-bis(phenylmethyl)-5,7,9-triroxo-2,12-diaza-6,8-diphosphatridecanedioate-6,8-oxide

Synonym: (2R,4S)-4-cyclohexyl-1-[[(R)-[(1S)-2-methyl-1-(1-oxopropoxy)propoxy](4- phenylbutyl)phosphoryl]acetyl]pyrrolidine2-carboxylic acid

Smile: O=C(O[C@@H]1COCC1)N[C@@H](CC2=CC=CC=C2)[C@@H](CN(S(=O)(C3=CC=C(N)C=C3)=O)CC(C)C)C(P(O4)(O)C(P4(O)C([C@H](CN(S(=O)(C5=CC=C(N)C=C5)=O)CC(C)C)[C@H](CC6=CC=CC=C6)NC(O[C@@H]7COCC7)=O)=O)=O)=O