Crystal structure of methyl (3RS,4SR,4aRS,11aRS,11bSR )-5-oxo-3,4,4a,5,7,8,9,10,11,11a-decahydro-3,11b-epoxyazepino[2,1-a ]isoindole-4-carboxylateCrystal structure of methyl (3RS,4SR,4
aRS,11
aRS,11bSR )-5-oxo-3,4,4
a,5,7,8,9,10,11,11
a-decahydro-3
8a-Methyl-5,6,8,8a,9,10-hexa-hydro-10,12a-epoxy-isoindolo[1,2-a] isoquinolinium iodide-Alder reaction of methallyl chloride with 3,4-dihydro-1-furylisoquinoline. The cation comprises
a fused penta