A short syntheticapproach with broad scope to access five- to seven-membered cyclic sulfoximines in only two to three steps from readily available thiophenols is reported. Thus, simple building blocks were converted to complex molecular structures by a sequence of S-alkylation and one-pot sulfoximine formation, followed by intramolecular cyclization. Seventeen structurally diverse cyclic sulfoximines
Synthesis of a Wide Range of Thioethers by Indium Triiodide Catalyzed Direct Coupling between Alkyl Acetates and Thiosilanes
作者:Yoshihiro Nishimoto、Aya Okita、Makoto Yasuda、Akio Baba
DOI:10.1021/ol300450j
日期:2012.4.6
An indium triiodide-catalyzed substitution of the acetoxy group in alkyl acetates with thiosilanes provides access to a variety of thioethers. The method is efficient for a wide scope of acetates such as primary alkyl, secondary alkyl, tertiary alkyl, allylic, benzylic, and propargylic acetates.
Divergent synthesis of functionalized thioethers via multicomponent reaction of benzynes
作者:Hui Jian、Qiang Wang、Wei-Hua Wang、Zhi-Juan Li、Cheng-Zhi Gu、Bin Dai、Lin He
DOI:10.1016/j.tet.2018.04.072
日期:2018.6
Diverse functionalized thioethers were efficiently synthesized through the multicomponent reaction of benzynes, cyclic thioethers and different nucleophiles. Both inorganic salts (KF, KCl, KBr, and KSCN) and silylated reagents (TMSCN, TMSN3, TMSCl) can be utilized as efficient nucleophiles for the reaction.
The reaction of cyclic sulfides with benzyne generated from 2-carboxybenzenediazonium chloride affords ω-chloroalkyl phenyl sulfides in good yields. A similar type of reaction was also observed with acyclic sulfides.
Benzoic acid compounds and use thereof as medicaments
申请人:Yoshitomi Pharmaceutical Industries, Ltd.
公开号:US05864039A1
公开(公告)日:1999-01-26
Benzoic acid compounds of the formula ##STR1## wherein each symbol is as defined in the specification, optical isomers thereof and pharmaceutically acceptable salts thereof; pharmaceutical composition comprising this compound and pharmaceutically acceptable additive; and serotonin 4 receptor agonists, gastrointestinal prokinetic agents and therapeutic agents for various gastrointestinal diseases, which comprise this compound as active ingredient. The compounds of the present invention have high and selective affinity for serotonin 4 receptor, and show agonistic effects thereon. Accordingly, they are useful medications for the prophylaxis and treatment of various gastrointestinal diseases, central nervous disorders, cardiac function disorders, urinary diseases, and the like, as well as useful anti-nociceptors for analgesic use which increase threshold of pain.