(2S,6R)-6-[[1(s)-Ethoxycarbonyl-3-Phenylpropyl]Amino]-5-Oxo-(2-Thienyl)Perhydro-

(S)-Ethyl 2-(((2S,6R)-5-oxo-2-(thiophen-2-yl)-1,4-thiazepan-6-yl)amino)-4-phenylbutanoate

(2S,6R)-6-[[(1S)-1-ethoxycarbonyl]-3- phenylpropyl]amino]-2-(2-thienyl)-1,4-thiazepan-5-one

(2S,6R)-6-[[1(s)-Ethoxycarbonyl-3-phenylpropyl]amino]-5-oxo-(2-thienyl)perhydro-1,4-thiazepine

[2S-[2a,6b(R*)]]-alpha-[[Hexahydro-5-oxo-2-(2-thienyl)-1,4-thiazepin-6-yl]amino]-benzenebutanoic acid ethyl ester

[2s-[2a,6b(r*)]]-alpha-[[hexahydro-5-oxo-2-(2-thienyl)-1,4-thiazepin-6-yl]amino]-benzenebutanoic acid ethyl ester