Caspofungin Impurity D

Chemical Name: (2R,4R)-N-((2S,3R)-1-((2S,4R)-2-(((2S,3S,4S)-1-(((2S,3R)-5-amino-1-((2S,3S)-2-carbamoyl-3-hydroxypyrrolidin-1-yl)-3-hydroxy-1-oxopentan-2-yl)amino)-3,4-dihydroxy-4-(4-hydroxyphenyl)-1-oxobutan-2-yl)carbamoyl)-4-hydroxypyrrolidin-1-yl)-3-hydroxy-1-oxobutan-2-yl)-1-(10,12-dimethyltetradecanoyl)-4,5-dihydroxypyrrolidine-2-carboxamide

Synonym: Anhydro Atorvastatin Lactone ; 2,3-Anhydro Atorvastatin Lactone ; 3-Dehydroxy 2,3-Dehydro Atorvastatin Lactone ; Atorvastatin Eliminated Lactone

Smile: O=C(N(C[C@H](O)C1)[C@@H]1C(N[C@]([C@H](O)[C@H](C2=CC=C(O)C=C2)O)([H])C(N[C@]([C@H](O)CCN)([H])C(N(CC[C@@H]3O)[C@@H]3C(N)=O)=O)=O)=O)[C@@]([C@H](O)C)([H])NC([C@@H](C[C@@H](O)C4O)N4C(CCCCCCCCC(C)CC(C)CC)=O)=O