Discovery of 2-methoxy-3-phenylsulfonamino-5-(quinazolin-6-yl or quinolin-6-yl)benzamides as novel PI3K inhibitors and anticancer agents by bioisostere
摘要:
2-Substituted-3-sulfonamino-5-(quinazolin-6-yl or quinolin-6-yl)benzamides have been proposed as novel structures of PI3K inhibitors and anticancer agents based on bioisostere. In the present study, 2-substituted-3-sulfonamino-5-(4-morpholinoquinazolin-6-yl)benzamides and 2-methoxy-3-sulfonamino-5-(4-morpholinoquinolin-6-yl)benzamides were synthesized. Their antiproliferative activities in vitro were evaluated via MTT assay against four human cancer cell lines, including A549, HCT-116, U-87 MG and KB. The SAR of the title compounds was preliminarily discussed. Compound 1a with potent antiproliferative activity was tested for its inhibitory activity against MK and mTOR and its effect on the AKT and p-AKT(473). The anticancer effect of la was evaluated in established nude mice U-87 MG xenograft model. The results suggest that compound la can significantly inhibit PI3K/AKT/mTOR pathway and tumor growth. These findings strongly support the assumption that title compounds are potent PI3K inhibitors and anticancer agents. (C) 2014 Elsevier Masson SAS. All rights reserved.
antiproliferative activity was examined for itseffect on the AKT and p-AKT473. The anticancer effect of 1g was evaluated in established nude mice HCT-116 xenograft model. The results suggested that compound 1g can block PI3K/AKT/mTOR pathway and significantly inhibit tumor growth. These findings strongly support our assumption that the fragment of benzamide can replace the pyridine ring in some PI3K and mTOR dual
已经提出了2-取代的-3-磺酰基氨基苯甲酰胺的片段来代替PI3K和mTOR双重抑制剂中的2-取代的-3-磺酰基氨基吡啶的片段,以设计基于生物等排体的新型抗癌剂。2-取代的3-磺酰基氨基苯甲酰胺的片段与2-氨基苯并噻唑或2-氨基噻唑并[5,4- b ]吡啶或2-氨基[1,2,4]三唑并[1,5-]的片段的组合一个]吡啶制备抗癌剂的新颖结构。结果,合成并表征了十九种目标化合物。通过MTT测定法评估了它们在体外对四种人类癌细胞系的体外抗增殖活性,所述细胞系包括HCT-116,A549,MCF-7和U-87 MG。初步讨论了目标化合物的SAR。化合物1g研究了具有强抗增殖活性的化合物对AKT和p-AKT 473的作用。在已建立的裸鼠HCT-116异种移植模型中评估了1g的抗癌作用。结果表明,化合物1g可以阻断PI3K / AKT / mTOR通路,并显着抑制肿瘤的生长。这些发现强烈支持我们的假设,