CCC(=O)O[C@@H]1C(=O)[C@@]2(C)[C@@H](CC[C@H]3/C(=C(\CCC=C(C)C)C(=O)O)[C@@H](OC(C)=O)C[C@@]32C)[C@@]2(C)C=CC(=O)[C@@H](C)[C@H]12	6-O-propionyl-6-O-deacetylhelvolic acid