Table 1.

ACE inhibitory binding constants of sampatrilat and the analogue samAsp 18

Compound	Structure	nACE K i	cACE K i	Selectivity
Sampatrilat		171.9 ± 32.2 nm	13.8 ± 0.2 nm	12.4
SamAsp		10.6 ± 0.3 μm	7.4 ± 0.3 μm	1.4