2-azaspiro[4.5]dec-2-ene

2-azaspiro[4.5]decane-3-carbonitrile

1H-furo[3,4-b]chromene-3,9-dione

2-(4-oxo-4H-1-benzopyran-3-yl)-4-(N-cyclohexylimino)pyrano[3,4-b]-1-benzopyran-10-one

环己基甲胺