Design and synthesis of 1,3-biarylsulfanyl derivatives as new anti-breast cancer agents
摘要:
A new series of 1,3-biarylsulfanyl derivatives (homodibenzyl core motif) have been designed and synthesized as new estrogen receptor ligands by chopping benzothiophene core of raloxifene to engender secoraloxifene scaffold. All the synthesized compounds were screened for anti-proliferative, anti-osteoporotic, and anti-implantation activity. Compounds (35, 36) having basic amino anti-estrogenic side chain were exhibiting potential anti-proliferative activity in MCF-7, MDA-MB-231 and ishikawa cell lines. Some of the synthesized compounds having homodibenzyl motif (5, 8, 10) have shown moderate anti-osteoporotic activity. (C) 2011 Elsevier Ltd. All rights reserved.
A mild and highly efficient one-pot three-component reaction for carbon–sulfur bond formation catalyzed by potassium tert-butoxide
作者:Barahman Movassagh、Amir Rakhshani
DOI:10.1016/j.cclet.2011.05.015
日期:2011.7
Potassiumtert-butoxide has been found to be a highly efficient catalyst for one-pot, three-component reaction of aryl aldehydes, acetophenones, and thiols via Claisen–Schmidt/Michael addition reactions for the synthesis of thia-Michael adducts in high yields. The reactions are best carried out in tert-butyl alcohol at room temperature.
Synthesis of <font>β</font>-Aryl-<font>β</font>-sulfanyl Ketones by a Sequential One-Pot Reaction Using KF/Al<sub>2</sub>O<sub>3</sub> in Glycerol
作者:Gelson Perin、Katiúcia Mesquita、Tainara P. Calheiro、Márcio S. Silva、Eder J. Lenardão、Diego Alves、Raquel G. Jacob
DOI:10.1080/00397911.2013.788720
日期:2014.1.2
The title compounds were synthesized by a sequential one-pot reaction of aryl aldehydes, aryl-methyl ketones, and thiols promoted by KF/Al2O3. This methodology affords a large number of -aryl--sulfanyl ketone derivatives from aliphatic and aromatic thiols in good yields and is also applicable for solid substrates. [Supplementary materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) for the following free supplemental resource(s): Full experimental and spectral details.]
Using amino acid as a catalyst, an inexpensive, nontoxic, environmentally friendly, metal-free reaction procedure for C-S bond formation via thio-Michael addition reaction has been developed. The thio-Michael addition products were obtained in excellent yields under mild and neutral conditions. This metal-free catalytic protocol was found to be a good alternative to the existing metal catalyst methodology for the thio-Michael addition reaction. (c) 2007 Elsevier Ltd. All rights reserved.
Multicomponent, solvent-free synthesis of β-aryl-β-mercapto ketones using zirconium chloride as a catalyst
作者:Atul Kumar、Akanksha
DOI:10.1016/j.tetlet.2007.10.023
日期:2007.12
Zirconium chloride efficiently catalyzes the one-pot, three-component reaction of an aryl aldehyde, cyclic or acyclic enolizable ketones, and thiols under solvent-free conditions at room temperature to afford the corresponding beta-aryl-beta-mercaptoketones via aldol-Michael addition reactions. This methodology affords a large number of beta-aryl-beta-mercapto ketone derivatives in high yields and in short reaction times. (c) 2007 Elsevier Ltd. All rights reserved.