Uses of Cyanoacetylhydrazine in Heterocyclic Synthesis: Novel Synthesis of Pyrazole Derivatives with Anti-tumor Activities
作者:Rafat M. Mohareb、Nahed N. E. El-Sayed、Mahmoud A. Abdelaziz
DOI:10.3390/molecules17078449
日期:——
substitution to give 3-(5-amino-3-hydroxy-1H-pyrazol-1-yl)-3-oxopropanenitrile. The latter two compounds were used as key synthons to synthesize new thiophene, pyran, thiazole and some fused heterocyclic derivatives. The antitumor activity of the newly synthesized compounds was evaluated against three human tumor cells lines, namely breast adenocarcinoma (MCF-7), non-small cell lung cancer (NCI-H460)
氰基乙酰肼与氯乙酰氯反应得到N' -(2-氯乙酰基)-2-氰基乙酰肼。后者经环化得到1-(5-氨基-3-羟基-1H-吡唑-1-基)-2-氯乙酮,再经亲核取代得到3-(5-氨基-3-羟基-1H-吡唑-1-基)-3-氧代丙腈。后两种化合物 被用作合成新的噻吩、吡喃、噻唑和一些稠合杂环衍生物的关键合成子。新合成的化合物对三种人类肿瘤细胞系,即乳腺癌(MCF-7)、非小细胞肺癌(NCI-H460)和中枢神经系统癌(SF-268)以及其中一些化合物的抗肿瘤活性进行了评估发现对三种肿瘤细胞系表现出比革兰氏阳性对照阿霉素高得多的抑制作用。