4-Piperidinecarboxylic acid, 1-((5H-dibenzo(a,d)cyclohepten-5-yl)sulfonyl)-4-phenyl-, ethyl ester 5-((2-(4-Carbethoxy-4-phenylpiperidino)ethyl)sulfonyl)-5H-dibenzo(a,d)cycloheptene 67361-14-2 Ethyl 1-((5H-dibenzo(a,d)cyclohepten-5-yl)sulfonyl)-4-phenyl-4-piperidinecarboxylate