6127-50-0Relevant articles and documents
Discovery of New 4-Indolyl Quinazoline Derivatives as Highly Potent and Orally Bioavailable P-Glycoprotein Inhibitors
Chen, Zhe-Sheng,Dai, Qing-Qing,Li, Guo-Bo,Liu, Hong-Min,Liu, Hui,Wang, Bo,Wang, Shaomeng,Yu, Bin,Yuan, Shuo,Zhang, Jing-Ya,Zhang, Xiao-Nan,Zuo, Jia-Hui
, p. 14895 - 14911 (2021/10/12)
The major drawbacks of P-glycoprotein (P-gp) inhibitors at the clinical stage make the development of new P-gp inhibitors challenging and desirable. In this study, we reported our structure-activity relationship studies of 4-indolyl quinazoline, which led to the discovery of a highly effective and orally active P-gp inhibitor, YS-370. YS-370 effectively reversed multidrug resistance (MDR) to paclitaxel and colchicine in SW620/AD300 and HEK293T-ABCB1 cells. YS-370 bound directly to P-gp, did not alter expression or subcellular localization of P-gp in SW620/AD300 cells, but increased the intracellular accumulation of paclitaxel. Furthermore, YS-370 stimulated the P-gp ATPase activity and had moderate inhibition against CYP3A4. Significantly, oral administration of YS-370 in combination with paclitaxel achieved much stronger antitumor activity in a xenograft model bearing SW620/Ad300 cells than either drug alone. Taken together, our data demonstrate that YS-370 is a promising P-gp inhibitor capable of overcoming MDR and represents a unique scaffold for the development of new P-gp inhibitors.
Synthesis and biological evaluation of 2-(2'/3'/4'/6'-substituted phenyl)-1hindoles
Sravanthi,Rani,Manju
, p. 268 - 273 (2015/11/17)
Objective: Indole derivatives were reported to a wide range of biological activities. Thus it was our aim to synthesize a series of 2-(2'/3'/4'/6'- substituted phenyl) -1H-indoles using clayzic catalyst and screen for their in vitro anti-inflammatory, antioxidant and antimicrobial activities. Methods: Various substituted acetophenones were reacted with phenylhydrazine in the presence of modified clayzic catalyst and obtained 2- (2'/3'/4'/6'-substituted phenyl)-1H-indoles in a one pot reaction. The cyclized compounds were characterized by FT-IR, NMR, UV-Vis and mass spectral analyses and screened for anti-inflammatory activity against cytokines tumor necrosis factor (TNF-α) and interleukin-6 (IL-6) by measuring cytokine production by performing sandwich ELISA model, antioxidant activity by DPPH assay method and antimicrobial activity by well-diffusion method. Results: An eco-friendly route with better yields for the synthesis of 2-(2'/3'/4'/6'-substituted phenyl)-1H-indoles in the presence of clayzic catalyst was achieved. The biological activity results suggested that compounds (2d, 2e and 2i) have excellent anti-inflammatory activity, compounds (2a-2d and 2j) possessing better antioxidant property and compounds (2b, 2i, 2k and 2m) have promising antibacterial and antifungal activities when compared to the standard drugs. Conclusion: Synthesis of 2-(2'/3'/4'/6'-substituted phenyl)-1H-indoles was successfully achieved in the presence of clayzic catalyst. Compounds bearing amino, methyl, methoxy, hydroxyl and fluoro groups have shown better anti-inflammatory, antioxidant and antimicrobial activities when compared to the other compounds and 1H-indole.
