Identification of three new pterocarpans (6a,11a-dihydro-6H-benzofuro[3,2-c][1]benzopyrans) from Pisum sativum infected with Fusarium solani f. sp. pisi
Abstract
The isolation of three antifungal pterocarpans from Pisum sativum epicotyls infected with Fusarium solani f. sp. pisi is described. By a combination of spectroscopic and degradative techniques the compounds were identified as 4-hydroxy-2,3,9-trimethoxy-(1), 3-hydroxy-2,9-dimethoxy-(2), and 2,3,9-trimethoxy-pterocarpan (3).