2-METHYLENE-5-SUBSTITUTED-METHYLENECYCLOPENTANONE DERIVATIVES AND USE THEREOF
申请人:Zhao Linxiang
公开号:US20110060054A1
公开(公告)日:2011-03-10
The invention relates to 2-methylene-5-substituted-methylenecyclopentanone derivatives of formula I, and the use thereof. The derivatives of formula I as active components are useful for preparing a medicine for the treatment and/or prevention of cancer diseases such as breast cancer, lung cancer, colon cancer, rectal cancer, stomach cancer, prostate cancer, bladder cancer, uterus cancer, pancreatic cancer and ovary cancer. The active compounds of the invention may be used as an anticancer drug alone or used in combination with one or more other antitumor drugs. A combined therapy can be carried out by administrating each therapeutic component concurrently, subsequently or separately.
An efficient and room-temperature procedure is developed for high yield synthesis of novel α,β-unsaturated derivatives of thiopyran 3 directly from ketone 1 and various aldehydes in the presence of catalytic quantities of TMSNMe2 and MgBr2˙OEt2 under solvent-free conditions. The main advantage of the procedure is that the formation of the undesired bis by-products is minimized. In addition, the procedure
Room temperature aldol reactions using magnetic Fe<sub>3</sub>O<sub>4</sub>@Fe(OH)<sub>3</sub>composite microspheres in hydrogen bond catalysis
作者:Fang Niu、Long Zhang、San-Zhong Luo、Wei-Guo Song
DOI:10.1039/b920009f
日期:——
Fe3O4@Fe(OH)3 composite microspheres are highly active, environmentally friendly and easy to recycle catalysts for aldol reactions, which are catalyzed by a solid–liquid interfacial hydrogen bond catalyst at room temperature.
high yield synthesis of monoarylidene derivatives of cyclic systems directly from the reaction of ketone with various aldehydes under solvent-free conditions. Reactions took place rapidly in the presence of catalytic amounts of pyrrolidine, while no significant formation of the undesired bis by-products was observed. Moreover, the procedure was applicable to both homo- and heterocyclicketones.
Synthesis and biological evaluation of novel active arylidene derivatives of 5,6-dihydro-4H-cyclopenta[b]- and 4,5,6,7-tetrahydrobenzo[b]-thiophene-2-carboxylic acid
作者:P. R. Kathiravan、M. Venugopal、S. Muthukumaran
DOI:10.1007/s11164-016-2763-9
日期:2017.4
from condensation of various aromatic aldehydes with cyclopentanone and cyclohexanone. All synthesized compounds were characterized by nuclear magnetic resonance (NMR), infrared (IR), and mass spectroscopy and X-ray single-crystal analysis. The synthesized compounds were screened for their in vitro antimicrobial and antifungal activity. Good antimicrobial activity, especially against methicillin-resistant
5,6-二氢-4 H-环戊[ b ]-噻吩-2-羧酸和4,5,6,7-四氢苯并[ b ]的一系列新的亚芳基衍生物通过使氯醛的亚苄基衍生物与2-巯基乙酸反应来合成]-噻吩-2-羧酸。氯醛的亚苄基衍生物是由2-苄叉基环戊酮和2-苄叉基环己酮衍生物的Vilsmeier反应制得的,该衍生物是由各种芳族醛与环戊酮和环己酮的缩合反应制得的。所有合成的化合物均通过核磁共振(NMR),红外(IR)以及质谱和X射线单晶分析进行表征。筛选合成的化合物的体外抗微生物和抗真菌活性。对于大多数测试化合物,观察到良好的抗菌活性,尤其是对耐甲氧西林的金黄色葡萄球菌。特别是化合物9f 作为有效的抗菌剂出现,并且可能是未来药物发现和开发的潜在候选者。