Micafungin Impurity 1

Chemical Name: N-((2R,6S,9S,11R,12R,14aS,15S,16S,20S,23S,25aS)-20-((R)-3-amino-1-hydroxy-3-oxopropyl)-23-((1S,2S)-2-(3,4-dihydroxyphenyl)-1,2-dihydroxyethyl)-2,11,12,15-tetrahydroxy-6-((R)-1-hydroxyethyl)-16-methyl-5,8,14,19,22,25-hexaoxotetracosahydro-1H-dipyrrolo[2,1-c:2',1'-l][1,4,7,10,13,16]hexaazacyclohenicosin-9-yl)-4-(5-(4-(pentyloxy)phenyl)isoxazol-3-yl)benzamide