2-(3-oxo-3H-benzo[f]chromen-1-yl)acetonitrile

3-oxo-3H-naphtho[1,2-b]pyran-1-acetic acid

2-萘酚

2-硝基萘并[2,1-b]呋喃-1-乙酸

萘并[2,1-b]呋喃-1-乙酸