Dihydroergocristine Mesilate EP Impurity K

Chemical Name: (6aR,9R,10aR)-N-[(2R,5S,10aS,10bS)-5-benzyl-10b-hydroxy-2-(1-methylethyl)-3,6-dioxooctahydro-8H-oxazolo[3,2-a]pyrrolo[2,1-c]pyrazin-2-yl]-7-methyl-4,6,6a,7,8,9-hexahydroindolo[4,3-fg]quinoline-9-carboxamide (ergocristine)

Smile: O=C(N[C@]1(C(C)C)O[C@@](O)([C@]2([H])CCCN2C([C@@H]3CC4=CC=CC=C4)=O)N3C1=O)[C@@H]5C=C6[C@@]([H])(CC7=CNC8=C7C6=CC=C8)N(C)C5