[EN] PROCESS FOR PREPARING A COT INHIBITOR COMPOUND<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN COMPOSÉ INHIBITEUR DE COT
申请人:GILEAD SCIENCES INC
公开号:WO2021202688A1
公开(公告)日:2021-10-07
Disclosed are syntheses of a Cot (cancer Osaka thyroid) inhibitor, which has the formula (I).
公开了一种Cot(大阪甲状腺癌)抑制剂的合成方法,其化学公式为(I)。
A Ce(OTf)<sub>3</sub>/PyBox catalyzed enantioselective Hosomi–Sakurai reaction of aldehydes with allyltrimethylsilane
作者:Song Zhao、Xulong Zhang、Yuwei Zhang、Huanhuan Yang、Yan Huang、Kui Zhang、Ting Du
DOI:10.1039/c5nj01488c
日期:——
An approach to the efficient synthesis of enantioselective homoallylic alcohols has been developed by the use of a catalytic amount of a cerium/PyBox complex.
通过使用少量铈/PyBox复合物催化,已经开发出一种高效合成对映选择性同烯丙基醇的方法。
Enantioselective oxidation of olefins catalyzed by chiral copper bis(oxazolinyl)pyridine complexes: a reassessment
作者:Sandeep K. Ginotra、Vinod K. Singh
DOI:10.1016/j.tet.2006.01.093
日期:2006.4
Copper complexes of chiral tridentate pybox ligands synthesized using a modified procedure have been studied as catalysts for the enantioselective allylic oxidation of olefins. A variety of olefins have been used in this reaction. Using 5 mol% of a Cu(II) complex of the tridentate pybox ligand, phenylhydrazine, and tert-butyl perbenzoate as oxidant in acetone, optically active allylic benzoates were
Asymmetric Kharasch Reaction: Catalytic Enantioselective Allylic Oxidation of Olefins Using Chiral Pyridine Bis(diphenyloxazoline)−Copper Complexes and <i>tert</i>-Butyl Perbenzoate<sup>,</sup>
作者:Govindasamy Sekar、Arpita DattaGupta、Vinod K. Singh
DOI:10.1021/jo972132p
日期:1998.5.1
Copper complexes of chiral pyridine bis(diphenyloxazoline)-type ligands have been studied as catalysts for the enantioselective allylic oxidation of olefins. Using 2.5-5 mol % of these chiral catalysts and tert-butyl perbenzoate as oxidant, optically active allylic benzoates were obtained in up to 86% ee. A variety of copper salts was studied under different conditions and in different solvents. Acetone was found to be a superior solvent for the reaction. Use of phenylhydrazine in conjunction with the chiral copper complex played a crucial role in increasing the rate of the reaction. Use of 4 Angstrom molecular sieves increased the optical yield of product in almost every case.
Synthesis of homochiral bis (oxazolinyl) pyridine type ligands for asymmetric cyclopropanation reactions
作者:Arpita Datta Gupta、Debnath Bhuniya、Vinod K. Singh
DOI:10.1016/s0040-4020(01)85684-2
日期:1994.1
Homochiral bis(oxazolinyl)pyridine type ligands were synthesized from (S)-valine and converted into their Cu(II) complexes. Reduction of these Cu(II) complexes into Cu(I) with diazoesters was studied by uv-vis and epr spectroscopy. The enantioselective cyclopropanation reaction was carried out using styrene as a model substrate.