tubulosan

Noun

 * 1)  The alkaloid (2S,3R,11bS)-3-ethyl-2-[[(1R)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indol-1-yl]methyl]-2,3,4,6,7,11b-hexahydro-1H-benzo[a]quinolizine