1	FHH	Methyl 4-[(2-oxidanylidene-1,5,6,7-tetrahydrocyclopenta[B]pyridin-3-yl)carbonylamino]butanoate	1.000
2	L6B	Methyl 4-[(2-oxidanylidene-5,6,7,8-tetrahydro-1~{H}-quinolin-3-yl)carbonylamino]but-3-enoate	0.864
3	L6E	[2-(methylamino)-2-oxidanylidene-ethyl] (~{E})-4-[(2-oxidanylidene-5,6,7,8-tetrahydro-1~{H}-quinolin-3-yl)carbonylamino]but-2-enoate	0.731
4	4YU	Methyl (2e)-4-{[(5-methoxy-1,2-dimethyl-1h-indol-3-yl)carbonyl]amino}but-2-enoate	0.720