3,4-O-Isopropylidene Clindamycin

: (2S-trans)-Methyl 7-Chloro-6,7,8-trideoxy-3,4-O-(1-methylethylidene)-6-[[(1-methyl-4-propyl-2-pyrrolidinyl)carbonyl]amino]-1-thio-L-threo-α-D-galacto-octopyranoside;(2S,4R)-N-((1S,2S)-2-chloro-1-((3aS,4R,6R,7R,7aR)-7-hydroxy-2,2-dimethyl-6-(methylthio)tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-4-yl)propyl)-1-methyl-4-propylpyrrolidine-2-carboxamide ;