benzo[f]quinoline
9α,10β-diacetoxy-8α-bromo-7β-hydroxy-7,8,9,10-tetrahydrobenzo
9α,10β-diacetoxy-8β-bromo-7α-hydroxy-7,8,9,10-tetrahydrobenzo
9α,10β-diacetoxy-7β,8β-epoxy-7,8,9,10-tetrahydrobenzo
9α,10β-diacetoxy-7α,8α-epoxy-7,8,9,10-tetrahydrobenzo