Structure–Kinetic Profiling of Haloperidol Analogues at the Human Dopamine D<sub>2</sub> Receptor
作者:Tim J. Fyfe、Barrie Kellam、David A. Sykes、Ben Capuano、Peter J. Scammells、J. Robert Lane、Steven J. Charlton、Shailesh N. Mistry
DOI:10.1021/acs.jmedchem.9b00864
日期:2019.11.14
a typical antipsychotic drug (APD) associated with an increased risk of extrapyramidal side effects (EPSs) and hyperprolactinemia relative to atypical APDs such as clozapine. Both drugs are dopamine D2 receptor (D2R) antagonists, with contrasting kinetic profiles. Haloperidol displays fast association/slow dissociation at the D2R, whereas clozapine exhibits relatively slow association/fast dissociation
Herbicides containing 3-aminobenzo(B)thiophenes as antidotes
申请人:BASF Aktiengesellschaft
公开号:US05491123A1
公开(公告)日:1996-02-13
Herbicides contain one or more antagonistic 3-aminobenzo[b]thiophenes I ##STR1## wherein the variables on the compound of formula I are defined in the specification. A) the group consisting of the cyclohexenone derivatives or B) the group consisting of the 4-hetaryloxyphenoxyacetic acid derivatives.
Bromotrimethylsilane (TMSBr)-promoted intramolecular cyclization of (o-arylethynyl)benzylethers to form 1H-isochromenes at room temperature is reported. Further studies indicated that vinyl carbocations are the reaction intermediates which are stabilized by the conjugated aryl groups. Thus, O-addition of benzylethers/tetrahydropyrans to alkynes was achieved under metal-free, acidic conditions. These
报道了溴代三甲基硅烷 (TMSBr) 促进的 ( o -arylethynyl) 苄基醚在室温下分子内环化形成 1 H-异色烯。进一步的研究表明,乙烯基碳阳离子是由共轭芳基稳定的反应中间体。因此,在无金属、酸性条件下实现了苄基醚/四氢吡喃与炔烃的O-加成。这些反应条件与炔基普林斯反应相容;因此,使用一锅法直接由炔基苯甲醛和炔醇生产1 H-异色烯。
Novel highly potent OXE receptor antagonists with prolonged plasma lifetimes that are converted to active metabolites in vivo in monkeys
had a half-life in plasma of over 7 hr, considerably longer than any of the other OXE analogues tested. A major hydroxylated metabolite, with a potency close to that of its precursor, was identified in plasma. CONCLUSION AND IMPLICATIONS Because of its highly potent antagonist activity and its long lifetime in vivo, S-Y048 may be a useful anti-inflammatory agent for the treatment of eosinophilic diseases
Tetrahydroxydiboron-Promoted Radical Addition of Alkynols
作者:Ze-Ying Sun、Sen Zhou、Kai Yang、Minjie Guo、Wentao Zhao、Xiangyang Tang、Guangwei Wang
DOI:10.1021/acs.orglett.0c02367
日期:2020.8.7
Tetrahydroxydiboron has previously been used as a borylation or reducing reagent in organic synthesis. Herein, we present a novel tetrahydroxydiboron-promoted radicaladdition of internal alkynes followed by intramolecular oxidation of alcohol through 1,5-hydrogen atom transfer. Preliminary mechanistic studies showed that the process might be initiated through N,N-dimethylformamide-assisted homolytic