12-Meth­oxy-15-(4-morpholino)podocarpa-8,11,13-trien-15-one

The title compound [systematic name: (6-meth­oxy-1,4a-dimethyl-1,2,3,4,4a,9,10,10a-octa­hydro­phenanthren-1-yl)morpholin-4-yl-methanone], C₂₂H₃₁NO₃, was synthesized from natural podocarpic acid via amidation of the acid chloride derivative. The crystal structure shows that the morpholino ring adopts a full chair conformation, while the amide N-C bond has partial double-bond character.