Zosurabalpin desmethyl impurity

Chemical Name: (7S,10S,13S)-13-((1H-indol-3-yl)methyl)-10-(4-aminobutyl)-7-(3-aminopropyl)-12-methyl-17-phenyl-6,7,9,10,12,13,15,16-octahydrobenzo[b]pyrido[3,2-p][1]thia[5,8,11,14]tetraazacycloheptadecine-8,11,14(5H)-trione

Smile: O=C([C@H](CC1=CNC2=C1C=CC=C2)N(C)C([C@H](CCCCN)N3)=O)NCC4=C(C5=CC=CC=C5)C=CC=C4SC6=NC=CC=C6CN[C@@H](CCCN)C3=O