1-((2,3-Dihydro-5-phenyl-1-benzothiepin-4-yl)methyl)piperidine hydrochloride 21728-67-6 4-(Piperidinomethyl)-5-phenyl-2,3-dihydro-1-benzothiepin hydrochloride Piperidine, 1-((2,3-dihydro-5-phenyl-1-benzothiepin-4-yl)methyl)-, hydrochloride