p. 2277 - 2282
(2007/10/02)4-formyl-8-hydroxy-9-methoxy-2H,6H-benzo(1,2-b;3,4-b')-dipyran-2,6-dione
4-methyl-8-hydroxy-9-methoxy-2H,6H-benzodipyran-(1,2-b;3,4-b')-2,6-dione
2,3,3a,8a-tetrahydro-4-hydroxy-6-methoxy-furo-(2,3-b)benzofuran
5-hydroxy-7-methoxy-4-methyl-2H-chromen-2-one
2-hydroxy-3-bromobenzaldehyde