[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][/C][=C][/C][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][\\-Ring1][Branch1][=O][O][C][=C][C][O][Ring1][#Branch2]"}, {"from": "gpt", "value": "The molecule is an organic heterobicyclic compound that is 7,7a-dihydrocyclopenta[b]pyran-6(2H)-one substituted by a hydroxy group at position 5 and a prop-2-en-1-ylidene group at position 7 (the Z isomer). Isolated from the sponge Ulosa and ascidian Diplosoma virens, it exhibits antimicrobial activity and toxicity against HCT116 cells (human colorectal cancer cells) by triggering apoptotic cell death. It has a role as a metabolite, an antimicrobial agent and an antineoplastic agent. It is a cyclic ether, an enol, an enone and an organic heterobicyclic compound."}]