8,9-dimethoxy-10b-vinyl-1,2,3,5,6,10b-hexahydropyrrolo[2,1-a]isoquinoline InChI=1/C16H21NO2/c1-4-16-7-5-8-17(16)9-6-12-10-14(18-2)15(19-3)11-13(12)16/h4,10-11H,1,5-9H2,2-3H pyrrolo[2,1-a]isoquinoline, 10b-ethenyl-1,2,3,5,6,10b-hexahydro-8,9-dimethoxy-