[(1R,5S)-8-methyl-8-azabicyclo[3.2.1]octan-3-yl] 1H-indole-3-carboxylate 1H-indole-3-carboxylic acid [(1R,5S)-8-methyl-8-azabicyclo[3.2.1]octan-3-yl] ester 89565-68-4 D02130 PDSP2_000764 PDSP1_000776 Tropisetron (INN) ICS-205930 Novaban STOCK1N-71105 C13666 Lopac-T-104 NCGC00015984-01 NCGC00161414-01