3',4'-Dihydroxy-7-methoxy-8-(3-methylbut-2-enyl)-furano(4'',5'':6,5)-flavanone 7-(3,4-Dihydroxy-phenyl)-4-methoxy-5-(3-methyl-but-2-enyl)-7,8-dihydro-furo[2,3-f]chromen-9-one 7-(3,4-dihydroxyphenyl)-4-methoxy-5-(3-methylbut-2-en-1-yl)-7,8-dihydro-9H-furo[2,3-f]chromen-9-one 9H-furo[2,3-f][1]benzopyran-9-one, 7-(3,4-dihydroxyphenyl)-7,8-dihydro-4-methoxy-5-(3-methyl-2-butenyl)- InChI=1/C23H22O6/c1-12(2)4-6-14-21(27-3)15-8-9-28-22(15)20-18(26)11-19(29-23(14)20)13-5-7-16(24)17(25)10-13/h4-5,7-10,19,24-25H,6,11H2,1-3H