[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C@H1][C@@H1][C@][Branch1][#Branch1][C][C][C][Ring1][=Branch1][=C][C][C][C@@][Branch2][Ring2][=N][C@@][Ring1][#Branch2][Branch2][Ring1][P][C][C][C@H1][C@][Ring1][=Branch1][Branch2][Ring1][#Branch1][C][C][C@@H1][C@@][Ring1][=Branch1][Branch1][=C][C][C][C@@H1][Branch1][Branch2][C][Ring1][=Branch1][Branch1][C][C][C][O][C][C][O][C][Ring2][Ring1][N][=O][C]"}, {"from": "gpt", "value": "The molecule is a hexacyclic triterpenoid that is 13,28-epoxyursan-28-one with a terminal double bond between positions 20(30) and is substituted by a hydroxy group at position 3 (the 3beta,19alpha stereoisomer). It is a taraxastane-type triterpene isolated from Hypericum oblongifolium and exhibits enzyme inhibitory activity against chymotrypsin. It has a role as a metabolite and an EC 3.4.21.1 (chymotrypsin) inhibitor. It is a hexacyclic triterpenoid, a gamma-lactone, a bridged compound and a secondary alcohol. It derives from a hydride of a taraxastane."}]