Synthesis and Anticancer Activity of Some New Pyrazolo[3,4-d]pyrimidin-4-one Derivatives
作者:Khaled Abdellatif、Eman Abdelall、Mohamed Abdelgawad、Rasha Ahmed、Rania Bakr
DOI:10.3390/molecules19033297
日期:——
1H-pyrazolo[3,4-d][1,3]oxazin-4-one (3) was prepared by hydrolysis of ethyl 5-amino-3-methyl-1-phenyl-1H-pyrazole-4-carboxylate (1) to afford the corresponding carboxylic acid 2, which was reacted with acetic anhydride to give 3. The pyrazolo[3,4-d][1,3]oxazin-4-one 3 was reacted with hydroxylamine hydrochloride, urea, thiourea, thiosemicarbazide, phenylhydrazine and aromatic amines to afford the corresponding
5-氨基-3-甲基-1-苯基乙基水解制备3,6-二甲基-1-苯基-1H-吡唑并[3,4-d][1,3]恶嗪-4-酮(3) -1H-吡唑-4-甲酸酯(1)得到相应的羧酸2,其与乙酸酐反应得到3。吡唑并[3,4-d][1,3]恶嗪-4-酮3为与盐酸羟胺、尿素、硫脲、氨基硫脲、苯肼和芳香胺反应,分别得到相应的吡唑并[3,4-d]嘧啶-4-酮4、5a、b、6、7、8a-e。吡唑嗪衍生物3与99%水合肼缩合得到5-氨基吡唑并[3,4-d]嘧啶衍生物9。9与芳香醛偶联得到一系列3,6-二甲基-5-(4-取代的亚苄基氨基)- 1-苯基-1,5-二氢吡唑并[3,4-d]嘧啶-4-酮10a-e。测试了新化合物对 MCF-7 人乳腺癌细胞系的抗肿瘤活性。几乎所有测试的化合物都显示出抗肿瘤活性,特别是 3,6-二甲基-5-(4-硝基亚苄基氨基)-1-苯基-1,5-二氢吡唑并[3,4-d]嘧啶-4-酮 (10e)