Chemical Name: (S)-tert-Butyl 2-{(S)-2-[(S)-1-ethoxy-1-oxo-4-phenylbutan-2-ylamino]propanoyl}-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylate maleate salt (as per USP)
Smile: O=C([C@H](CC1=C2)N(C([C@@H](N[C@@H](CCC3=CC=CC=C3)C(OCC)=O)C)=O)CC1=CC(OC)=C2OC)OC(C)(C)C.O=C(O)/C=C\C(O)=O