Spiramycin



(SpiramycinⅠ)
(3R,4S,5S,6R,8R,9R,10E,12E,15R)-5-[2,6-Dideoxy-3-C-methyl-α-L-ribo-hexopyranosyl-(1→4)-3,6-dideoxy-3-dimethylamino-β-D-glucopyranosyloxy]-9-(2,3,4,6-tetradeoxy-4-dimethylamino-β-D-erythro-hexopyranosyloxy)-6-formylmethyl-3-hydroxy-4-methoxy-8-methylhexadeca-10,12-dien-15-olide

(SpiramycinⅡ)
(3R,4S,5S,6R,8R,9R,10E,12E,15R)-3-Acetoxy-5-[2,6-dideoxy-3-C-methyl-α-L-ribo-hexopyranosyl-(1→4)-3,6-dideoxy-3-dimethylamino-β-D-glucopyranosyloxy]-9-(2,3,4,6-tetradeoxy-4-dimethylamino-β-D-erythro-hexopyranosyloxy)-6-formylmethyl-4-methoxy-8-methylhexadeca-10,12-dien-15-olide

(SpiramycinⅢ)
(3R,4S,5S,6R,8R,9R,10E,12E,15R)-5-[2,6-Dideoxy-3-C-methyl-α-L-ribo-hexopyranosyl-(1→4)-3,6-dideoxy-3-dimethylamino-β-D-glucopyranosyloxy]-9-(2,3,4,6-tetradeoxy-4-dimethylamino-β-D-erythro-hexopyranosyloxy)-6-formylmethyl-4-methoxy-8-methyl-3-propanoyloxyhexadeca-10,12-dien-15-olide