1 ZIT Azithromycin 1.000 2 ERN (3r,4s,5s,6r,7r,9r,10s,11s,12r,13s,14r)-10-amino-6-{[(2s,3r,4s,6r)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2h-py ran-2-yl]oxy}-14-ethyl-7,12,13-trihydroxy-4-{[(2r,4r,5s,6s)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2h-pyran-2-yl]oxy }-3,5,7,9,11,13-hexamethyloxacyclotetradecan-2-one 0.907 3 ERY Erythromycin a 0.907 4 ERB Erythromycin B 0.889 5 CTY Clarithromycin 0.857 6 EY5 Erythromycin D 0.836 7 ROX Roxithromycin 0.803 8 ZIO (3s,5r,6s,7r,8r,11r,12s,13r,14s,15s)-6-hydroxy-5,7,8,11,13,15-hexamethyl-4,10-dioxo-14-{[3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl]oxy}-1,9-dioxaspiro[2.13]hexadec-12-yl 2,6-dideoxy-3-O-methyl-alpha-L-arabino-hexopyranoside 0.754 9 EMK (2r,3s,4r,5r,8r,10r,11r,12s,13s,14r)-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-15-oxo-11-[(3,4,6-trideoxy-3-{[3-(1-{(1s,2r)-1-(fluoromethyl)-2-hydroxy-2-[4-(methylsulfonyl)phenyl]ethyl}-1h-1,2,3-triazol-4-yl)propyl](methyl)amino}-beta-D-xylo-hexopyranosyl)oxy]-1-oxa-6-azacyclopentadecan-13-yl 2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranoside 0.703