Caspofungin Phenylthio Amide Impurity

Chemical Name: (3S)-(4R,5R)-N2-[(10R,12S)- 10,12-Dimethyl-1- oxotetradecyl]- 4-hydroxy-5- phenylthio-L-ornithyl-L- threonyl-(4R)-4-hydroxy-L- prolyl-(4S)-4-hydroxy-4-(4- hydroxyphenyl)-L-threonyl- (3R)-3-hydroxy-L-glutaminyl- 3-hydroxy-L-proline (6→1)- lactam ; N-[(3S,6S,9S,11R,15S,18S,20R,21R,24S,25S)-3-[(1R)-3-amino-1-hydroxy-3-oxopropyl]-6-[(1S,2S)-1,2-dihydroxy-2-(4-hydroxyphenyl)ethyl]-11,20,25-trihydroxy-15-[(1R)-1-hydroxyethyl]-2,5,8,14,17,23-hexaoxo-21-phenylsulfanyl-1,4,7,13,16,22-hexazatricyclo[22.3.0.09,13]heptacosan-18-yl]-10,12-dimethyltetradecanamide

Synonym: 1-[(4R,5R)-N2-(10,12-Dimethyl-1-oxotetradecyl)-4-hydroxy-5-(phenylthio)-L-ornithine]-pneumocandin B0

Smile: CCC(C)CC(C)CCCCCCCCC(N[C@@H](C[C@@H](O)[C@@H](SC1=CC=CC=C1)N2)C(N[C@@H]([C@H](O)C)C(N3C[C@H](O)C[C@@]3([H])C(N[C@@H]([C@H](O)[C@@H](O)C4=CC=C(O)C=C4)C(N[C@@H]([C@H](O)CC(N)=O)C(N5CC[C@H](O)[C@@]5([H])C2=O)=O)=O)=O)=O)=O)=O