4-Piperidinecarboxylic acid, 1-(1-methyl-2-phenylethyl)-4-((1-oxopropyl)phenylamino)-, methyl ester 60645-02-5 BRN 0458403 Methyl 1-(1-methyl-2-phenylethyl)-4-(N-(1-oxopropyl)-N-phenylamino)-4-piperidinecarboxylate R 32721