1 1F3 (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-10-{[3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl]oxy}tetradecahydro-2h-oxacyclotetradecino[4,3-D][1,3]oxazol-8-yl (2r)-2-[4-(acetylamino)phenyl]-2,3-dihydro-1h-pyrrole-1-carboxylate 1.000 2 1F2 (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-10-{[3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl]oxy}tetradecahydro-2h-oxacyclotetradecino[4,3-D][1,3]oxazol-8-yl (2r)-2-(pyridin-3-yl)pyrrolidine-1-carboxylate 0.902 3 1F4 (3as,4r,7r,8s,9s,10r,11r,13r,15s,15ar)-4-ethyl-11-methoxy-3a,7,9,11,13,15-hexamethyl-2,6,14-trioxo-10-{[3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl]oxy}tetradecahydro-2h-oxacyclotetradecino[4,3-D][1,3]oxazol-8-yl (2r)-4,4-dimethyl-2-(pyridin-3-yl)pyrrolidine-1-carboxylate 0.873