Daptomycin Impurity 23

Chemical Name: (2S,5S,8R,14S,17R,20S,23S,29S,32S)-32-((R)-4-amino-2-((S)-2-decanamido-3-(1H-indol-3-yl)propanamido)-4-oxobutanamido)-2-(2-(2-aminophenyl)-2-oxoethyl)-23-(3-aminopropyl)-14,20-bis(carboxymethyl)-5-((R)-1-carboxypropan-2-yl)-29-((R)-1-hydroxyethyl)-8-(hydroxymethyl)-17-methyl-4,7,10,13,16,19,22,25,28,31-decaoxo-3,6,9,12,15,18,21,24,27,30-decaazatetratriacontanedioic acid

Synonym: (2R,2'R)-2'-methyl-4-azaspiro[bicyclo[2.2.2]octane-2,5'-[1,3]oxathiolane] 3'-oxide

Smile: O=C(N[C@H](CC(N)=O)C(N[C@@H](CC(O)=O)C(N[C@]([C@H](O)C)([H])C(NCC(N[C@@H](CCCN)C(N[C@@H](CC(O)=O)C(N[C@H](C)C(N[C@@H](CC(O)=O)C(NCC(N[C@H](CO)C(N[C@]([C@H](C)CC(O)=O)([H])C(N[C@H](C(O)=O)CC(C(C=CC=C1)=C1N)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)[C@@H](NC(CCCCCCCCC)=O)CC2=CNC3=CC=CC=C23