英文别名(2S,4R,4a'R,5S,6S,7'R,8'S,9'R,10'R,13'R,15'R,16'R,17'S,17a'S)-16'-(((2S,3R,4S,6R)-4-(Dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-7'-ethyl-5,8',9',15'-tetrahydroxy-4-methoxy-4,6,8',10',11',13',15',17'-octamethyloctadecahydro-5'H-spiro[pyran-2,2'-[1,3]dioxino[4,5-m][1]oxa[6]azacyclopentadecin]-5'-one; Azithromycin Impurity 11; C14,1″-Epoxy Azithromycin; Spiro[5H-1,3-dioxino[4,5-m][1,6]oxaazacyclopentadecine-2,2'-[2H]pyran]-5-one, 7-ethyloctadecahydro-5',8,9,15-tetrahydroxy-4'-methoxy-4',6',8,10,11,13,15,17-octamethyl-16-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]-, (2S,4'R,4aR,5'S,6'S,7R,8S,9R,10R,13R,15R,16R,17S,17aS)- 
