SMILES: CC1(C=CC2=C(C3=C(C(=C2O1)C(C)(C)C=C)OC4=C(C3=O)C=CC=C4O)O)C
Description: 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.