New quinoline- and isoquinoline-based multicomponent methods for the synthesis of 1,1(3,3)-dicyanotetrahydrobenzoindolizines
作者:I. A. Sanin、A. A. Zubarev、A. Yu. Rudenko、L. A. Rodinovskaya、E. A. Batuev、A. M. Shestopalov
DOI:10.1007/s11172-018-2073-z
日期:2018.2
multicomponent methods for the synthesis of benzannulated dihydroindolizines based on quinoline or isoquinoline, malononitrile, aromatic aldehydes and α-halomethylcarbonyl compounds were developed. Several alternative protocols of using the reactants were studied, starting with separate generation of two most probable intermediates and ending with the four-componentcondensation of all reactants. The scope
Synthesis, 3D-pharmacophore modelling and 2D-QSAR study of new pyridine-3-carbonitriles as vasorelaxant active agents
作者:Aladdin M. Srour、Dina H. Dawood、Dalia O. Saleh
DOI:10.1039/d0nj06319c
日期:——
A new set of pyridine-3-carbonitriles (3a–v) conjugated with various five-membered ring systems at pyridinyl C-6 were designed and synthesized as vasorelaxant active agents.
Calcium ferrite, an efficient catalyst for knoevenagel condensation(A green approach)
作者:Parveen Pippal、Prabal Pratap Singh
DOI:10.13005/ojc/330418
日期:2017.8.28
Calcium ferrite NPs catalyst have been used as a cheaper and highly efficient catalyst for Knoevenagel condensation of active methylene substrate with various carbonyl compounds affording condensed products in excellent yields in shorter reaction time. The developed greener protocol is very simple, involving cleaner work up and the synthesized products do not require further purification. The catalyst can easily be removed and reused at least for four times without any appreciable change in reactivity.
Design, Docking, and Synthesis of Some New Pyrazoline and Pyranopyrazole Derivatives as Anti-inflammatory Agents
作者:Magda M. F. Ismail、Nagy M. Khalifa、Hoda H. Fahmy、Eman S. Nossier、Mohamed M. Abdulla
DOI:10.1002/jhet.1757
日期:2014.3
Design and synthesis of some novel pyrazoline and pyranopyrazole derivatives as potential anti‐inflammatory agents are described. Most of the compounds were tested for their anti‐inflammatory (in vitro and in vivo) and ulcerogenic activities. In all tested compounds, it was found that pyrazolines, 2a, and pyrazolopyrano[2,3‐d]pyrimidine 9 are the potent anti‐inflammatory and selective cyclooxygenase‐2
描述和设计了一些新型的吡唑啉和吡喃并吡唑衍生物作为潜在的抗炎药。测试了大多数化合物的抗炎作用(体外和体内)和致溃疡活性。在所有测试的化合物中,发现吡唑啉2a和吡唑并吡喃并[2,3- d ]嘧啶9是有效的抗炎和选择性环氧合酶2(COX-2)抑制剂。所有化合物主要处于安全水平。对2a和9的对接研究表明,它与COX-2酶的活性位点(如选择性COX-2抑制剂SC-558)的结合亲和力更高。
Polystyrene-immobilized DABCO as a highly efficient and recyclable organocatalyst for the Knoevenagel condensation reaction
作者:Da-Zhen Xu、Sen Shi、Yongmei Wang
DOI:10.1039/c3ra43921f
日期:——
ed DABCO was used for the first time as a basic organocatalyst for carbon–carbon bond formation reactions. The supported catalyst could be used as a reusable catalyst in the Knoevenagel condensation of a wide range of aromatic/heterocyclic/α,β-unsaturated aldehydes and ketones with active methylene compounds. The reaction conditions are mild and the method is operationally simple. The reactions proceed