N-((S)-8-oxo-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocyclohepten-7-yl)-(E)-(2R,3R,4S,5R)-3,4,5-trihydroxy-2-methoxy-8,8-dimethyl-non-6-enamide

(2R,3R,4S,5R,6E)-7-cyclopentyl-2-ethoxy-3,4,5-trihydroxy-N-[(3S)-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepin-3-yl]hept-6-enamide

(S)-2-((S)-9-tert-Butoxycarbonylmethyl-8-oxo-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocyclohepten-7-ylamino)-4-cyclohexyl-butyric acid butyl ester

tert-butyl 3(S)-[1(S)-benzyloxycarbonyl-3-cyclohexylpropyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine-5-acetate

(S)-2-((S)-9-Carboxymethyl-8-oxo-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocyclohepten-7-ylamino)-4-cyclohexyl-butyric acid ethoxycarbonylmethyl ester; hydrochloride