| (2R,4aS,6aS,12bR,14aS,14bR)-10-Hydroxy-2,4a,6a,9,12b,14a- | hexamethyl-11-oxo-1,2,3,4,4a,5,6,6a,11,12b,13,14,14a,14b-tetradecahydro-picene-2-carboxylic acid |
| (20a)-3- | hydroxy-2-oxo-D:A-Friedo-24-noroleana-1(10),3,5,7-tetraen-29-oic acid |
| (2R,4aS,6aR,6aS,14aS,14bR)-10- | hydroxy-2,4a,6a,6a,9,14a-hexamethyl-11-oxo-1,3,4,5,6,13,14,14b-octahydropicene-2-carboxylic acid |
| (2R,4aS,6aS,12bR,14aS,14bR)-10- | hydroxy-2,4a,6a,9,12b,14a-hexamethyl-11-oxo-1,2,3,4,4a,5,6,6a,11,12b,13,14,14a,14b-tetradecahydro-2-picenecarboxylic acid |
| (2R,4aS,6aS,12bR,14aS,14bR)-10- | hydroxy-2,4a,6a,9,12b,14a-hexamethyl-11-oxo-1,3,4,5,6,13,14,14b-octahydropicene-2-carboxylic acid |
| 3- | hydroxy-24-nor-2-oxo-1(10),3,5,7-friedelatetraen-29-oic acid |
| (9b,13a,14b,20a)-3- | hydroxy-9,13-dimethyl-2-oxo-24,25,26-trinoroleana-1(10),3,5,7-tetraen-29-oic acid |
| 2- | picenecarboxylic acid, 1,2,3,4,4a,5,6,6a, 11,12b,13,14,14a,14b-tetradecahydro-10-hydroxy-2,4a,6a,9,12b, 14a-hexamethyl-11-oxo- |
| 2- | picenecarboxylic acid, 1,2,3,4,4a,5,6,6a,11,12b,13,14,14a,14b-tetradecahydro-10-hydroxy-2,4a,6a,9,12b,14a-hexamethyl-11-oxo-, (2R,4aS,6aS,12bR,14aS,14bR)- |
| (2R,4aS,6aS,12bR,14aS,14bR)-1,2,3,4,4a,5,6,6a,11,12b,13,14,14a,14b- | tetradecahydro-10-hydroxy-2,4a,6a,9,12b,14a-hexamethyl-11-oxo-2-picenecarboxylic acid |
| 1,2,3,4,4a,5,6,6a, 11,12b,13,14,14a,14b- | tetradecahydro-10-hydroxy-2,4a,6a,9,12b,14a-hexamethyl-11-oxo-2-picenecarboxylic acid |
| | tripterin |
| | tripterine |