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

N-((S)-2-oxo-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-3-yl)-(E)-(2R,3R,4S,5R)-3,4,5-trihydroxy-2-methoxy-8,8-dimethylnon-6-enamide

N-((S)-1-methyl-2-oxo-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-3-yl)-(E)-(2R,3R,4S,5R)-3,4,5-trihydroxy-2-methoxy-8,8-dimethylnon-6-enamide

N-((S)-1-methyl-4-oxo-2,3,4,5-tetrahydro-1H-1,5-bezodiazepin-3-yl)-(E)-(2R,3R,4S,5R)-3,4,5-trihydroxy-2-methoxy-8,8-dimethylnon-6-enamide

N-((S)-9-methyl-8-oxo-6,7,8,9-tetrahydro-5-oxa-9-azabenzocyclohepten-7-yI)-(E)-(2R,3R, 4S, 5R)-3,4,5-trihydroxy-2-methoxy-8,8-dimethylnon-6-enamide