Synonyms: Spiradine D(neutral), 16,17-dihydro-16-hydroxy-, (16b)-;5H,9H-9,12-Methano-11a,4,7a-[1]propanyl[3]ylideneindeno[1,2-g]oxazolo[3,2-a]azocin-16-one,dodecahydro-10-hydroxy-4,10-dimethyl-, [3aR-(3aa,4a,7aa,7ba,9b,10a,11aa,12b,12ab,17S*)]-; Spirasine VI