Acetic acid 2-(4-benzyloxy-3-methoxy-phenyl)-3,5,7,8-tetramethoxy-4-oxo-4H-chromen-6-yl ester

2-(4-Benzyloxy-3-methoxy-phenyl)-3,5,7,8-tetramethoxy-6-methoxymethoxy-chromen-4-one

Toluene-4-sulfonic acid 2-(4-benzyloxy-3-methoxy-phenyl)-5,6,7,8-tetramethoxy-4-oxo-4H-chromen-3-yl ester

Toluene-4-sulfonic acid 2-(4-benzyloxy-3-methoxy-phenyl)-5,7,8-trimethoxy-6-methoxymethoxy-4-oxo-4H-chromen-3-yl ester

Acetic acid 2-(4-benzyloxy-3-methoxy-phenyl)-5-hydroxy-7,8-dimethoxy-4-oxo-3-(toluene-4-sulfonyloxy)-4H-chromen-6-yl ester