1 RU6 (3as,4r,7r,8s,9s,10r,11r,13r,15r,15ar)-4-ethyl-11-methoxy-3a,7,9,11,13,15-hexamethyl-2,6,14-trioxo-1-[4-(4-pyridin-3-yl-1h-imidazol-1-yl)butyl]-10-{[3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl]oxy}tetradecahydro-2h-oxacyclotetradecino[4,3-D][1,3]oxazol-8-yl 2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranoside 1.000 2 TEL Telithromycin 0.814 3 EM1 (3as,4r,7s,9r,10r,11r,13r,15r,15ar)-1-{4-[4-(3-aminophenyl)-1h-1,2,3-triazol-1-yl]butyl}-4-ethyl-7-fluoro-11-methoxy-3a ,7,9,11,13,15-hexamethyl-2,6,8,14-tetraoxotetradecahydro-2h-oxacyclotetradecino[4,3-D][1,3]oxazol-10-yl 3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranoside 0.743