英文别名2,3-Butanediol, 2-(2,5-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)-, (2R,3R)-; (2R,3R)-2-(2,5-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)butane-2,3-diol; (2R,3R)-2-(2,5-difluoro-phenyl)-1-(1H-1,2,4-triazole-1-yl)butan-2,3-diol; Efinaconazole Impurity 49; Des-4-methylenepiperidine Efinaconazole 
