5-methoxy-3-(4-methoxyphenyl)-4-oxo-4H-chromen-7-yl dimethylcarbamate

3',4'-bis(benzyloxy)-5,7-dihydroxy-3-methoxyflavone

3,4-Dihydro-7-hydroxy-5-methoxy-2,2-dimethyl-2H-1-benzopyran

5,7-dihydroxy-2'-isopropyloxyneoflavone

5-hydroxy-8,8-dimethyl-9,10-dihydropyrano[2,3- f]chromen-2(8H)-one