5-Azuleneaceticacid, 1,2,4,5,6,7,8,8a-octahydro-3,8-dimethyl-a-methylene-2-oxo-, [5S-(5a,8b,8aa)]-

Rupestonic acid

5-Azuleneacetic acid,1,2,4,5,6,7,8,8a-octahydro-3,8-dimethyl-a-methylene-2-oxo-, (5S,8S,8aS)-

rupestonic acid

5-Azuleneacetic acid, 1,2,4,5,6,7,8,8a-octahydro-3,8-dimethyl-alpha-methylene-2-oxo-, (5S-(5alpha,8beta,8aalpha))-

2-[(5S,8S,8aS)-3,8-dimethyl-2-oxo-1,2,4,5,6,7,8,8a-octahydroazulen-5-yl]prop-2-enoic acid