Dihydrociclosporine A 

Chemical Name: 1,11-anhydro[L-alanyl-D-alanyl-N-méthyl-L-leucyl-N-méthyl-L-leucyl-N-méthyl-L-valyl-(2S,3R,4R)-3-hydroxy-4-méthyl-2-(méthylamino)octanoyl-(2S)-2-aminobutanoyl-N-méthylglycyl-N-méthyl-L-leucyl-L-valyl-N-méthyl-L-leucine] (as per EP)

Synonym: 9-[(1R ,3R ,4S )-4-Hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]guanine ; Cyclosporin A Dihydro Impurity ; Cyclosporin EP Impurity B

Smile: O=C([C@H](CC(C)C)N(C)C(CN1C)=O)N[C@@H](C(C)C)C(N(C)[C@@H](CC(C)C)C(N[C@@H](C)C(N[C@H](C)C(N(C)[C@@H](CC(C)C)C(N(C)[C@@H](CC(C)C)C(N(C)[C@@H](C(C)C)C(N([C@@H]([C@H](O)[C@H](C)CCCC)C(N[C@@H](CC)C1=O)=O)C)=O)=O)=O)=O)=O)=O)=O