4-氯-6-(甲基硫代)嘧啶-5-甲腈

4-methylsulfanyl-6-(4-nitrophenyl)-2-oxopyran-3-carbonitrile

methyl 2-cyano-3-(dimethylamino)-3-methylsulfanylprop-2-enoate

4-(甲基硫代)-6-氧代-2-苯基-1,6-二氢嘧啶-5-羧酸甲酯

methyl 3,3-dichloro-2-cyanoprop-2-enoate