2-((4aS,9bR)-6-methoxy-1,2,4,4a-tetrahydro-9bH-spiro[dibenzo[b,d]furan-3,2'-[1,3]dioxolane]-9b-yl)ethan-1-amine

methyl (2-((4aS,9bR)-6-methoxy-1,2,4,4a-tetrahydro-9bH-spiro[dibenzo[b,d]furan-3,2'-[1,3]dioxolane]-9b-yl)ethyl)carbamate

methyl (4aS,8aR)-3-methoxy-6-oxo-4a,5,7,8,9,10-hexahydro-6H-benzo[2,3]benzofuro[4,3-cd]azepine-11(12H)-carboxylate

methyl (4aS,8aR)-6-((tert-butyldimethylsilyl)oxy)-3-methoxy-4a,5,9,10-tetrahydro-8H-benzo[2,3]benzofuro[4,3-cd]azepine-11(12H)-carboxylate

(4aS,8aS)-methyl 3-methoxy-6-oxo-5,6,9,10-tetrahydro-4aH-benzo[2,3]benzofuro[4,3-cd]azepine-11(12H)-carboxylate