3-乙酰基-2,7-二甲基-5H-[1]苯并吡喃[2,3-b]吡啶-5-酮

1-己烷磺酸钠

6-methyl-3-(2H-tetrazol-5-yl)chromen-4-one

[acetyloxy-(3-cyano-4-oxochromen-6-yl)methyl] acetate

4-oxo-3-(2H-tetrazol-5-yl)chromene-6-carbaldehyde