C-乙氧基羰基N-芳基nitrilimines的环加成和它们的C-乙酰类似物4到α,β-不饱和的酮,得到主要的5-酰基-4-芳基-2-吡唑啉衍生物和分别。所述cycloadducts的结构和通过光谱(支持的13 C NMR,1 H NMR和IR)和分析数据。Tewari和Parihar关于这些反应的区域化学的结论无法维持。
Design, synthesis, and structure–activity relationship of novel and effective apixaban derivatives as FXa inhibitors containing 1,2,4-triazole/pyrrole derivatives as P2 binding element
摘要:
Four series of novel and potent FXa inhibitors possessing the 1,2,4-triazole moiety and pyrrole moiety as P2 binding element and dihydroimidazoleitetrahydropyrimidine groups as P4 binding element were designed, synthesized, and evaluated for their anticoagulant activity in human and rabbit plasma in vitro. Most compounds showed moderate to excellent activity. Compounds 14a, 16, 18c, 26c, 35a, and 35b were further examined for their inhibition activity against human FXa in vitro and rat venous thrombosis in vivo. The most promising compound 14a, with an IC50 (FXa) value of 0.15 mu M and 99% inhibition rate, was identified for further evaluation as an FXa inhibitor. (C) 2016 Elsevier Ltd. All rights reserved.
Albar, Hassan A., Journal of Chemical Research, Miniprint, 1999, # 3, p. 872 - 889
作者:Albar, Hassan A.
DOI:——
日期:——
Albar, Hassan A., Journal of Chemical Research, Miniprint, 1996, # 7, p. 1756 - 1764
作者:Albar, Hassan A.
DOI:——
日期:——
Regioselective synthesis and antitumor screening of some novel N-phenylpyrazole derivatives
作者:Ahmad M. Farag、Abdelrahman S. Mayhoub、Saber E. Barakat、Ashraf H. Bayomi
DOI:10.1016/j.bmc.2007.10.015
日期:2008.1
The versatile, hitherto unreported 4-acetyl-5-methyl-1-phenyl-3-phenylcarbamoyl-1H-pyrazole (3) was prepared via the reaction of 2-(2-phenylhydrazono)-2-chloro-N-phenylacetamide with pentan-2,4-dione in the presence of sodium ethoxide. Reaction of 3 with dimethylformamide-dimethylacetal (DMF-DMA) furnished the corresponding 4-[(E)-3-(dimethylamino)aci-yloyl]-5-methyl-1-phenyl-3-phenylcarbamoyl-1H-pyrazole (5). The latter product underwent regioselective 1,3-dipolar cycloaddition with some nitrilimines to afford the non-isolable dihydropyrazole intermediates which then lose dimethylamine yielding the corresponding pyrazole derivatives. The preliminary screening for the antitumor activity of all newly synthesized compounds was carried out against Ehrlich Ascites Carcinoma tumor cells. (C) 2007 Elsevier Ltd. All rights reserved.
ZACHINYAEV YA. V.; PETROV M. L.; FROLKOV A. I.; CHISTOKLETOV V. N.; PETRO+, ZH. ORGAN. XIMII, 1980, 16, HO 5, 938-942
作者:ZACHINYAEV YA. V.、 PETROV M. L.、 FROLKOV A. I.、 CHISTOKLETOV V. N.、 PETRO+
DOI:——
日期:——
ZACHINYAEV, YAROSLAV VASILEVICH;BOBROV, ALEKSANDR IVANOVICH;GINAK, ANATOL+, REV. ROUM. CHIM., 34,(1989) N, C. 901-903
作者:ZACHINYAEV, YAROSLAV VASILEVICH、BOBROV, ALEKSANDR IVANOVICH、GINAK, ANATOL+