Trabectedin Impurity 4

Chemical Name: (1'R,6R,6aR,7R,13S,16R)- 5-(Acetyloxy)-3',4',6,6a,7,13,14,16-octahydro-6',8-dihydroxy-7',9-dimethoxy-4,10,23-trimethyl-Spiro[6,16-(epithiopropanoxymethano)-7,13-imino-12H-1,3-dioxolo[7,8]isoquino[3,2-b][3]benzazocine-20,1'(2'H)-isoquinolin]-19-one

Synonym: Ecteinascidin 745 ; ET-745

Smile: CC1=C2C(OCO2)=C([C@@](CO3)([H])N4[C@@]([C@@](N5C)([H])C6=C(O)C(OC)=C(C)C=C6C[C@@]5([H])C4)([H])[C@]7([H])SC[C@@]8(C9=CC(OC)=C(O)C=C9CCN8)C3=O)C7=C1OC(C)=O