Micafungin Serine Analog Impurity

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

Smile: CCCCCOC1=CC=C(C2=CC(C3=CC=C(C(N[C@H](C(N[C@@H](CO)C4=O)=O)C[C@@H](O)[C@@H](O)NC([C@H]5N(C([C@@H](NC([C@@H](NC([C@H]6N4C[C@H](O)C6)=O)[C@H](O)[C@@H](O)C7=CC=C(O)C(OS([O-])(=O)=O)=C7)=O)[C@H](O)CC(N)=O)=O)C[C@H](C)[C@@H]5O)=O)=O)C=C3)=NO2)C=C1.[Na+]