3-(acetoxy)methyl-1-ethenyl-9H-pyrido[3,4-b]indole

1-ethenyl-3-(methoxymethyloxy)methyl-N-methoxymethyl-9H-pyrido[3,4-b]indole

methyl (R)-1-(2,2-dimethyl-1,3-dioxolan-4-yl)-9H-pyrido[3,4-b]indole-3-carboxylate