This invention is directed to novel and known stufur containing compounds and pharmaceutically acceptable salts thereof that have utility as antifungals and as antiproliferative agents against mammalian cells, in particular cancer cells and most particularly leukemia-derived cells. The invention provides a method for synthesizing certain of the sulfur containing compounds that is more efficient than previously known methods.
Organocatalytic Transformation of Aldehydes to Thioesters with Visible Light
作者:Yueteng Zhang、Peng Ji、Wenbo Hu、Yongyi Wei、He Huang、Wei Wang
DOI:10.1002/chem.201900932
日期:2019.6.21
A metal‐ and oxidant‐free catalytic method for accessing structurally diverse thioesters from readily accessible, widespread aldehydes, is described. A strategy of a simple organic 9,10‐phenanthrenequinone‐promoted hydrogen atom transfer (HAT) with visible light was successfully implemented to selectively generate acyl radicals without inducing crossover reactivity of thioester products. The preparative
Metal‐Free Synthesis of Thiosulfonates via Insertion of Sulfur Dioxide
作者:Guoqing Li、Ziyu Gan、Kexin Kong、Xiaomeng Dou、Daoshan Yang
DOI:10.1002/adsc.201900157
日期:2019.4.16
A simple and catalyst‐free strategy was developed for the synthesis of unsymmetrical thiosulfonates using readily available DABCO⋅(SO2)2 as a solid and bench‐stable sulfur dioxide surrogate. The corresponding thiosulfonates were obtained through a radical pathway with good functional group tolerance. This strategy offers a promising synthesis method for the construction of diverse and useful thiosulfonates
Unsymmetrical disulfide and sulfenamide synthesis via reactions of thiosulfonates with thiols or amines
作者:Nobukazu Taniguchi
DOI:10.1016/j.tet.2017.02.047
日期:2017.4
The reactivity of thiosulfonates with nucleophilic reagents was investigated. When reactions of thiosulfonates with thiols were performed, unsymmetricaldisulfides were obtained in excellent yields. This procedure could employ numerous aryl or alkyl thiols. On the other hand, reactions of thiosulfonates with amines proceeded in the presence of a copper catalyst. The procedure was performed efficiently