Pyridine hydrobromide Indole Ethyl 1,3,4,5-tetrahydro-2H-pyrido[4,3,b]indole-2-carboxylate dimebolin 5-BENZYL-2-METHYL-2,3,4,5-TETRAHYDRO-1H-PYRIDO[4,3-B]INDOLE 8-FLUORO-2,3,4,5-TETRAHYDRO-1H-PYRIDO[4,3-B]INDOLE BOC-L-1,2,3,4-TETRAHYDRONORHARMAN-3-CARBOXYLIC ACID BOC-D-1,2,3,4-TETRAHYDRONORHARMAN-3-CARBOXYLIC ACID L-1,2,3,4-TETRAHYDRONORHARMAN-3-CARBOXYLIC ACID (1S,3S)-2,3,4,9-TETRAHYDRO-1-METHYL-1H-PYRIDO[3,4-B]INDOLE-3-CARBOXYLIC ACID