( -)-8-(1,2-Dimethylheptyl)-1,3,4,5-tetrahydro-5,5-dimethyl-2-(2-propynyl)-2H-(1)benzopyrano(4,3-c)pyridin-10-yl 1-piperidinebutyrate ( -)-8-(1,2-Dimethylheptyl)-2,3,4,5-tetrahydro-5,5-dimethyl-2-(2-propinyl)-1H-(1)benzopyrano(4,3-c)pyridin-10-yl 4-piperidinobutyrat 1-Piperidinebutanoic acid, 8-(1,2-dimethylheptyl)-1,3,4,5-tetrahydro-5,5-dimethyl-2-(2-propynyl)-2H-(1)benzopyrano(4,3-c)pyridin-10-yl ester 49637-08-3 66556-74-9 Benzopyranoperidine NABITAN Nabitanum [INN-Latin]