丙醇

2-[5-(cyanomethylidene)-3,3,6,6-tetramethyl-1,4-dioxan-2-ylidene]acetonitrile

4-imidazol-1-yl-5,5-dimethylfuran-2-imine

1-(2-oxo-5,5-dimethyl-2,5-dihydro-4-furyl)imidazole