pterocarpans 212.15930 C15O2R12 CHEBI:26377 CHEBI:60953 Members of the class of benzofurochromene with a 6a,11a-dihydro-6H-[1]benzofuro[3,2-c]chromene skeleton and its substituted derivatives. They generally bear structural resemblance to isoflavanoids that possess antibiotic activity and are produced by plant tissues in response to infection. They are the 3,4-dihydroderivatives of coumestans. MetaCyc:PTEROCARPANS Wikipedia:Pterocarpan [*]c1c([*])c([*])c2c(OC([*])([*])C3([*])c4c([*])c([*])c([*])c([*])c4OC23[*])c1[*] chebi_ontology isoflavonoid phytoalexin isoflavonoid phytoalexins benzofurochromene flavonoids