[{"from": "human", "value": "Describe this molecule. [C][C][Branch2][Ring2][S][C][=C][C][=C][Branch2][Ring2][Branch2][C][=C][Branch2][Ring1][Ring1][C][=Branch1][#Branch1][=C][Ring1][=Branch1][O][Ring1][#Branch2][C][Branch1][C][C][Branch1][C][C][C][=C][O][C][=C][Branch1][Branch1][C][Ring1][=C][=O][C][=C][C][=C][Ring1][Branch2][O][O][C]"}, {"from": "gpt", "value": "The molecule is a member of the class of pyranoxanthones that is 2H,6H-pyrano[3,2-b]xanthen-6-one substituted by hydroxy groups at positions 5 and 10, geminal methyl groups at position 2 and a 2-methylbut-3-en-2-yl group at position 12. It is isolated from the roots of Calophyllum blancoi and exhibits antiviral activity against coronavirus. It has a role as a metabolite and an antiviral agent. It is a polyphenol and a member of pyranoxanthones."}]