3-Piperidinomethyl-exo-5,6-trimethylenenorbornan-2-one 4,7-Methano-5H-inden-5-one, octahydro-6-(1-piperidinylmethyl)-, (3a-alpha,4-beta,7-beta,7a-alpha)- 5-20-02-00343 (Beilstein Handbook Reference) 73291-29-9 BRN 1644365