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)