Ritonavir EP Impurity K

Chemical Name: Thiazol-5-yl-methyl (1S,2S,4S)-1-benzyl-2-hydroxy-4-[[(2-methylpropoxy) carbonyl] amino]-5-phenylpentyl]carbamate (as per EP); thiazol-5-ylmethyl (2S,3S,5S)-(5-isobutoxycarbonylamino)-3-hydroxy-1,6-diphenylhexan-2-ylcarbamate (as per USP)

Smile: O=C(OCC(C)C)N[C@H](C[C@H](O)[C@@H](NC(OCC1=CN=CS1)=O)CC2=CC=CC=C2)CC3=CC=CC=C3