Synthesis of novel isoxazole functionalized pyrazolo[3,4‐
<i>b</i>
]pyridine derivatives; their anticancer activity
作者:Sampath Ravula、Ramana Reddy Bobbala、Balakrishna Kolli
DOI:10.1002/jhet.3968
日期:2020.6
A series of novel isoxazole functionalized pyrazolo[3,4‐b]pyridine derivatives 5a‐n were prepared, respectively, initiated from 6‐thiophenyl‐4‐(trifluoromethyl)‐1H ‐pyrazolo[3,4‐b ]pyridin‐3‐amine 3 through selective N ‐propargylation, and these N ‐propargylated compounds 4 were cyclized with aryloximes by using of sodium hypochlorite, and obtained the title products 5a‐n . All the final products 5a‐n
一系列新颖的异恶唑官能吡唑并[3,4-b]吡啶衍生物的图5a-n的制备,分别从6-噻吩基-4-(三氟甲基)-1发起ħ -吡唑并[3,4- b ]吡啶-3-胺3通过选择性N炔丙基化,而这些N炔丙基化的化合物4通过使用次氯酸钠与芳基肟环合,获得标题产物5a-n。所有最终产品5a‐n已提交针对四种癌细胞系(例如“ HeLa-宫颈癌(CCL-2)”)的抗癌活性;COLO 205-结肠癌(CCL‐222);HepG2-肝癌(HB-8065);MCF7-乳腺癌(HTB-22)”;发现化合物5c,5d和5h在微摩尔浓度下具有更突出的抗癌活性。