Robuta

https://pubchem.ncbi.nlm.nih.gov/compound/2H-1-Benzopyran-2-one_-4-methyl-7-_2_3_5-tri-O-benzoyl-beta-D-ribofuranosyl_oxy 2H-1-Benzopyran-2-one, 4-methyl-7-(2,3,5-tri-O-benzoyl-beta-D-ribofuranosyl)oxy- - PubChem 2H-1-Benzopyran-2-one, 4-methyl-7-(2,3,5-tri-O-benzoyl-beta-D-ribofuranosyl)oxy- chemical information summary. https://webbook.nist.gov/cgi/inchi/InChI%3D1S/C11H15N5O4/c1-4-6-9(15-11(12)14-4)16(3-13-6)10-8(19)7(18)5(2-17)20-10/h3%2C5%2C7-8%2C10%2C17-19H%2C2H2%2C1H3%2C(H2%2C12%2C14%2C15) 9H-purine, 2-amino-6-methyl-9-beta-d-ribofuranosyl- purineaminomethylbeta