呋喃并[3,2-b]吡啶-3-甲腈

3-溴四氢-2H-吡喃-2-甲腈

9-oxothioxanthene-2,7-dicarbonitrile

2-氯-5-氟异烟腈

Ethyl 5-cyano-1-benzothiophene-2-carboxylate