Indolizin
1,6,7,8-Indolizinetetrol, octahydro-, 1,6,8-tribenzoate 7-methanesulfonate, 1S-(1.alpha.,6.beta.,7.alpha.,8.beta.,8a.beta.)-
(6aR,12aR,12bR)-11-methyl-1,2,3,5,6,6a,12a,12b-octahydro-12H-chromeno[2,3-g]indolizin-12-one
Spirocyclohexane-1,2-1,3dioxino4,5,6-hiindolizine-8,9-diol, octahydro-, 8-benzoate, 3aS-(3a.alpha.,8.alpha.,9.beta.,9a.beta.,9b.alpha.)-