1	VHI	5-{(3as,4s,6ar)-1-[(benzyloxy)carbonyl]-2-oxohexahydro-1h-thieno[3,4-D]imidazol-4-yl}pentanoic acid	1.000
2	NPK	5-[(3as,4r,6ar)-1-{[(1r)-1-(6-nitro-1,3-benzodioxol-5-yl)ethoxy]carbonyl}-2-oxohexahydro-1h-thieno[3,4-D]imidazol-4-yl]pentanoic acid	0.788