Identification of Diarylsulfone Sulfonamides as Secreted Frizzled Related Protein-1 (sFRP-1) Inhibitors
摘要:
Inhibitor of secreted frizzled related protein-1 (sFRP-1) would be a novel potential osteogenic agent, since loss of sFRP-1 affects osteoblast proliferation, differentiation, and activity, resulting in improved bone mineral density, quality, and strength. We have identified small molecule diarylsulfone sulfonamide derivatives as sFRP-1 inhibitors. Struture-activity relationship generated for various regions of the scaffold was utilized to improve the biochemical profile, resulting in the identification of potent selective analogues, such as 16 with desirable pharmaceutical profile.
Visible-Light-Driven Silver-Catalyzed One-Pot Approach: A Selective Synthesis of Diaryl Sulfoxides and Diaryl Sulfones
作者:Dong Hyuk Kim、Juyoung Lee、Anna Lee
DOI:10.1021/acs.orglett.7b03901
日期:2018.2.2
An efficient one-pot approach for the synthesis of diaryl sulfoxides and diaryl sulfonesusing aryl thiols and aryl diazonium salts was developed. The use of a visible-light-driven silver catalysis and the subsequent singlet-oxygen-induced oxidation enabled selective synthesis of sulfoxides and sulfones in the absence of a photocatalyst. The reactions were carried out under mild reaction conditions;
Selective Sulfonylation of Arenes and Benzoylation of Alcohols Using Lithium Perchlorate as a Catalyst Under Neutral Conditions
作者:B. P. Bandgar、V. T. Kamble、V. S. Sadavarte、L. S. Uppalla
DOI:10.1055/s-2002-25345
日期:——
Sulfonylation of aromatics with p-toluenesulfonyl chloride and benzoylation of alcohols with benzoyl chloride using lithium perchlorate as a catalyst is described. The remarkable selectivity under neutral conditions is an attractive feature of this method
General Copper-Catalyzed Transformations of Functional Groups from Arylboronic Acids in Water
作者:Haijun Yang、Yong Li、Min Jiang、Junmei Wang、Hua Fu
DOI:10.1002/chem.201003711
日期:2011.5.9
A simple and general copper‐catalyzed method has been developed for transformations of various functionalgroups (I, N3, SO2R, OH, NH2, and NO2) on aromatic rings fromarylboronicacids in water under air. The protocol uses cheap and readily available inorganic salts (KI, NaN3, NaSO2R, NaOH, NaNO2) and aqueous ammonia as the functional‐group sources, simple Cu2O/NH3 as the catalyst system, environmentally
简单和一般铜催化方法已被开发用于各种官能团的变换( I, Ñ 3, SO 2 R, OH, NH 2,和 NO 2)从在水中的芳基硼酸的芳环在空气中。该协议使用廉价且容易获得的无机盐(KI,NaN 3,NaSO 2 R,NaOH,NaNO 2)和氨水作为官能团来源,即简单的Cu 2 O / NH 3。作为催化剂体系,环境友好的水作为溶剂,空气中的氧气作为氧化剂。重要的是,水中的铜催化剂体系是可回收的。该研究应为芳香环上官能团的相互转化提供有用的策略。
Efficient synthesis of aliphatic sulfones by Mg mediated coupling reactions of sulfonyl chlorides and aliphatic halides
作者:Ying Fu、Qin-Shan Xu、Quan-Zhou Li、Zhengyin Du、Ke-Hu Wang、Danfeng Huang、Yulai Hu
DOI:10.1039/c7ob00251c
日期:——
Sulfonylchlorides were reduced to anhydrous sulfinate salts with magnesium under sonication. These sulfinates were alkylated to sulfones with alkyl chlorides in the presence of catalytic sodium iodide under sonication. A variety of aliphatic sulfones was efficiently prepared by this one-pot two-step procedure.
Copper-mediated sulfonylation of aryl iodides and bromides with arylsulfonyl hydrazides in PEG-400
作者:Xiangmei Wu、Yan Wang
DOI:10.1039/c8nj00075a
日期:——
Sulfonylation using stable and readily available arylsulfonyl hydrazides and aryliodides or bromides mediated by cupric acetate has been achieved. Using polyethyleneglycol (PEG-400) as an eco-friendly medium, the couplingreaction could afford a series of unsymmetrical diaryl sulfones in moderate to good yields without the presence of additional ligands and base.