(9S)-6,12-Dideoxy-9-deoxo-9-hydroxy-3,5-O-(1-methylethylidene)erythronolide A ((9S)-Dihydro-6-deoxy-erythronolide B) 3,5-Acetonide

(2S,3R)-2-methyl-3-hydroxypentanoic acid

(R)-2-((4S,5R,6S)-6-((2S,4R)-4-((4S,5S,6R)-6-((2R,3R)-3-(tert-butyldimethylsilyloxy)pentan-2-yl)-2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl)pentan-2-yl)-2,2,5-trimethyl-1,3-dioxan-4-yl)propanoic acid

(R)-2-[(4S,5R,6S)-6-((1S,3R)-1,3-Dimethyl-4-oxo-hexyl)-2,2,5-trimethyl-[1,3]dioxan-4-yl]-thiopropionic acid S-tert-butyl ester