Keywords: Pyrrolidin Tropan Piperidin.svg Vergleich der Strukturen von Pyrrolidin Nortropan und Piperidin Comparison of the structures of pyrrolidine nortropane and piperidine Comparaison des structures de la pyrrolidine du nortropane et de la pipéridine own 2007-04-07 NEUROtiker Own work all rights released Public domain Piperidine Pyrrolidine Tropane |