156205-48-0 1,6,7,8-Indolizinetetrol, octahydro-, 1,7,8-triacetate 6-methanesulfonate, 1S-(1.alpha.,6.beta.,7.alpha.,8.beta.,8a.beta.)- 167355-42-2 6,10-Methanobenzocyclodecene-3,5,7,11-tetrol,1,2,3,4,4a,5,6,7,8,11,12,12a-dodecahydro-9,12a,13,13-tetramethyl-4-methylene-,3,5-diacetate, [3S-(3a,4aa,5a,6b,7b,11b,12ab)]- 156257-97-5 1,6,7,8-Indolizinetetrol, octahydro-, tetraacetate (ester), 1S-(1.alpha.,6.alpha.,7.beta.,8.beta.,8a.beta.)-