Amurensinine

(-)-Amurensinine

(5R)-7,8-Dimethoxy-13-methyl-11α,5α-(iminomethano)-10,11-dihydro-5H-benzo[4,5]cyclohepta[1,2-f]-1,3-benzodioxole

(5R,11S)-10,11-Dihydro-7,8-dimethoxy-13-methyl-11,5-(iminomethano)-5H-benzo[4,5]cyclohepta[1,2-f]-1,3-benzodioxole