My Tracks: 6-(Trifluoromethyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine hydrochloride 2-Bromo-3-methylbenzenesulfonyl chloride 3,4-(Ethylenedioxy)thiophenol Methyl 1,2,3,4-tetrahydroisoquinoline-4-carboxylate hydrochloride