4-methoxy-7-methyl-2,3-dihydro-furo[3,2-g]chromen-5-one

6-hydroxy-4-methoxy-5-acetoacetylbenzofuran

7-allyloxy-8-iodo-5-methoxy-2-methylchromone

1-(6-hydroxy-4-methoxy-1-benzofuran-5-yl)ethanone

水