5-溴水杨醛

6A,6b,12b,12c-tetrahydro-cyclobuta[1,2-c,4,3-c'] dichromium ene-6,7-dione

苯并呋喃

2-乙炔基苯酚

2-(2-ethynylphenoxy)-2-methoxy-5,5-dimethyl-2,5-dihydro-1,3,4-oxadiazole