Micafungin Impurity A

Chemical Name: Sodium 5-((1S,2S,3S)-4-(((2S,3R)-5-amino-1-((2S,4S)-2-carbamoyl-3-hydroxy-4-methylpyrrolidin-1-yl)-3-hydroxy-1,5-dioxopentan-2-yl)amino)-3-((2S,4R)-1-((2S,3R)-2-((4S)-4,5-dihydroxy-1-(4-(5-(4-(pentyloxy)phenyl)isoxazol-3-yl)benzoyl)pyrrolidine-2-carboxamido)-3-hydroxybutanoyl)-4-hydroxypyrrolidine-2-carboxamido)-1,2-dihydroxy-4-oxobutyl)-2-hydroxyphenyl sulfate

Smile: [O-]S(OC1=CC([C@H](O)[C@@H](O)[C@H](NC([C@@H]2C[C@@H](O)CN2C([C@@H](NC(C3N(C(C4=CC=C(C5=NOC(C6=CC=C(OCCCCC)C=C6)=C5)C=C4)=O)C(O)[C@@H](O)C3)=O)[C@H](O)C)=O)=O)C(N[C@@H]([C@H](O)CC(N)=O)C(N7[C@H](C(N)=O)C(O)[C@@H](C)C7)=O)=O)=CC=C1O)(=O)=O.[Na+]