Synthesis of novel amide/amino acid functionalized pyrazolo[3,4‐
<i>b</i>
]pyridine derivatives; their anticancer activity and docking studies
作者:Bhadru Bhukya、Rajashekar Korra、Hanmanthu Guguloth
DOI:10.1002/jhet.4636
日期:——
A series of novel pyrazolo[3,4-b]pyridine amide/amino acid functionalized derivatives 5a–h, 6a–d and 7a, 7b were synthesized respectively from 6-thiophenyl-4-(trifluoromethyl)-1H-pyrazolo[3,4-b]pyridin-3-amine 1. Compound 1 reacted with chloroacetamide in the presence of K2CO3 to form compound 2 (O-tagged acetamide derivative), compound 2 on reaction with hydrazine hydrate in refluxing condition to
以6-thiophenyl-4-(trifluoromethyl) -1H - pyrazolo [ 3 , 4- b ] pyridin-3-amine 1 . 化合物1在K 2 CO 3存在下与氯乙酰胺反应生成化合物2(O标记的乙酰胺衍生物),化合物2与水合肼在回流条件下反应得到环化的吡唑并吡啶衍生物3,化合物3与溴乙酸乙酯反应得到吡唑并吡啶4的酯衍生物,化合物4在不同条件下与不同的伯胺和氨基酸(脂肪胺、环状仲胺或L-氨基酸)反应得到标题化合物。所有最终合成的化合物5a-h、6a-d和7a、7b都针对四种癌细胞系的抗癌活性进行了筛选,例如 'A549-肺癌 (CCL-185)、MCF7-乳腺癌 (HTB-22)、DU145 —前列腺癌 (HTB-81) 和 HeLa—宫颈癌 (CCL-2)已鉴定出有前途的5c、5e和5h化合物。对于化合物5c , 5e和5h分子对接相互作用已经确定。