SUBSTITUTED IMIDAZOLECARBOXYLATE DERIVATIVES AND THE USE THEREOF
申请人:CHENGDU MFS PHARMA. CO., LTD.
公开号:US20200369621A1
公开(公告)日:2020-11-26
A compound is shown in formula (I). The derivatives of the compound include a stereoisomer, a pharmaceutically acceptable salt, a solvate, a prodrug, a metabolite, a deuterated derivative. The compound is a structurally novel substituted imidazole formate derivative. Substituted imidazole formate derivatives are used in preparing a drug with sedative, hypnotic and/or anesthetic effects, as well as a drug that can control the state of epilepsy. The compound has a good inhibitory effect on the central nervous system, and provides a new option for clinical screening of and/or preparation of a drug with sedative, hypnotic and/or anesthetic effects and controlling the state of epilepsy.
A convenient “one-pot” synthesis of epoxy alcohols via photooxygenation of olefins in the presence of titanium(IV) catalyst
作者:Waldemar Adam、Axel Griesbeck、Eugen Staab
DOI:10.1016/s0040-4039(00)84656-0
日期:1986.1
The ene reaction of singlet oxygen with alkenes in the presence of titanium alkoxides was employed to prepare epoxyalcohols in high diastereoselectivity; enantioselectivity could be achieved by use of diethyl tartrate as chiral auxiliary.
Highly Selective, Recyclable Epoxidation of Allylic Alcohols with Hydrogen Peroxide in Water Catalyzed by Dinuclear Peroxotungstate
作者:Keigo Kamata、Kazuya Yamaguchi、Noritaka Mizuno
DOI:10.1002/chem.200400352
日期:2004.10.4
of oxygen to the carbon-carbon double bond, and the regeneration of the dinuclear peroxotungstate with hydrogenperoxide is proposed. The reaction rate shows first-order dependence on the concentrations of allylic alcohol and dinuclear peroxotungstate and zero-order dependence on the concentration of hydrogenperoxide. These results, the kinetic data, the comparison of the catalytic rates with those
双核过氧钨酸钾K2 [[W(= O)(O2)2(H2O) ] 2(mu-O)] 2 H 2 O(I)。该催化剂易于回收,同时保持其催化性能。提出了催化反应机理,包括交换水配体以形成钨醇盐物种,然后将氧插入碳-碳双键,并用过氧化氢再生双核过氧钨酸盐。反应速率显示出对烯丙基醇和双核过氧钨酸盐的浓度的一级依赖性,而对过氧化氢的浓度则呈零级依赖性。这些结果,动力学数据,
Diastereoselective epoxidation of olefins by organo sulfonic peracids, II
作者:R. Kluge、M. Schulz、S. Liebsch
DOI:10.1016/0040-4020(95)01128-5
日期:1996.2
have investigated the behaviour of sulfonic peracids 2in situ generated towards olefins 7a,7b,9,11,14,16,18, allylic and homoallylic alcohols 20,22,24,26,28,30,33 and α,β-unsaturated ketones 35,37,39. Generally, the epoxidation proceeds in a peracid-like manner with greater diastereoselectivity than those by common oxidants. In particular, the epoxidation of Δ4 3-ketosteroids 39a-i led to 4α,5α-epoxides
Unmatched efficiency and selectivity in the epoxidation of olefins with oxo-diperoxomolybdenum(VI) complexes as catalysts and hydrogen peroxide as terminal oxidant
作者:Swarup K. Maiti、Subhajit Dinda、Ramgopal Bhattacharyya
DOI:10.1016/j.tetlet.2008.08.028
日期:2008.10
having aromatic, carbocyclic and aliphatic olefins are effectively and selectively oxidized with oxygen-rich molybdenum(VI) complexes, namely [MoO(O2)2·2QOH] 1, [MoO(O2)(QO)2] 2, [Mo(O)2(QO)2] 3, [PPh4][MoO(O2)2(QO)] 4, [PPh4][Mo(O)2(O2)(QO)] 5 and [PPh4][Mo(O)3(QO)] 6 (QOH = 8-quinolinol) as catalyst, NaHCO3 as co-catalyst and H2O2 as the terminal oxidant, at room temperature. Catalysts 1 and 4 show