专利号:US-9126995-B2 优先权日:2011-11-08 标题:Method for catalytic asymmetric synthesis of optically active isoxazoline compound and optically active isoxazoline compound 发明人:TOYAMA KEN-ICHI; MORIYAMA YUJI; MATOBA KAZUTAKA; YAOSAKA MANABU; IKEDA EITATSU 权利人:NISSAN CHEMICAL IND LTD 摘要:There is provided a method for catalytic asymmetric synthesis of optically active isoxazoline compound and an optically active isoxazoline compound. A method for catalytic asymmetric synthesis of optically active isoxazoline compound of a formula (6) including reacting an α,β-unsaturated carbonyl compound of a formula (1) and a hydroxylamine in a solvent in the presence of a base by adding a chiral phase transfer catalyst. An optically active isoxazoline compound of a formula (13) that can be synthesized by the method.
专利号:US-2023286918-A1 优先权日:2020-07-02 标 题:Manufacturing process for 3,5-dichloropicolinonitrile for synthesis of vadadustat 发明人:JURKAUSKAS VALDAS; JUNG YOUNG CHUN; KWON TAESOO; KANNAN ARUNACHALAM; GONDI VIJAYA BHASKER 权利人:AKEBIA THERAPEUTICS INC 摘要:Disclosed herein are methods and processes of preparing vadadustat or a pharmaceutically acceptable salts thereof, and intermediates (e.g., a compound of Formula (I), (I-F), (II), or (IV), or a pharmaceutically acceptable salts thereof) useful for the synthesis of vadadustat.
专利号:US-2008125587-A1 优先权日:2006-05-25 标 题 :Synthesis of triazole compounds that modulate HSP90 activity 发明人:CHIMMANAMADA DINESH U; LEE CHI-WAN; JAMES DAVID; ZHANG SHIJIE; YING WEIWEN; CHAE JUNGHYUN; PRZEWLOKA TERESA 权利人:CHIMMANAMADA DINESH U; LEE CHI-WAN; JAMES DAVID; ZHANG SHIJIE; YING WEIWEN; CHAE JUNGHYUN; PRZEWLOKA TERESA 摘要:The present invention provides novel methods of preparing triazole compounds which inhibit the activity of Hsp90. One embodiment of the invention is directed to methods for preparing a triazole compound represented by the following Structural Formula: n n n n n n n n n n or a tautomer, a pharmaceutically acceptable salt, solvate, or clathrate, or a prodrug thereof, comprising the steps of: a) reacting an amide represented by the following Structural Formula: n n n n n n n n n n with a thionation reagent to form a thioamide; b) reacting the thioamide of step a) with hydrazine to form a hydrazonamide; c) reacting the hydrazonamide of step b) with a carbonylation or a thiocarbonylation reagent. n In one embodiment, the present invention is a method of synthesis of a compound of formula (IA) n n n n n n n n n n or a tautomer, a pharmaceutically acceptable salt, solvate, or clathrate, or a prodrug thereof, comprising reacting a compound of formula (IIA) n n n n n n n n n n with an oxidizing agent, thereby producing a compound of formula (IA). n The present invention is also directed to a method of preparing a compound or a tautomer thereof represented by the following Structural Formula: n n n n n n n n n n or a tautomer, a pharmaceutically acceptable salt, solvate, or clathrate, or a prodrug thereof. The method comprises the step of reacting a first starting compound represented by the following Structural Formula: n n n n n n n n n n in the presence of a mercuric salt, with a second starting compound represented by the following Structural Formula:
专利号:US-7173059-B2 优先权日:2003-05-08 标题:Intermediates useful in the synthesis of HIV-protease inhibitors and methods for preparing the same 发明人:ALBIZATI KIM FRANCIS; BABU SRINIVASAN 权利人:AGOURON PHARMA 摘要:Optically active 3-amino-butene and 1,2-dihydroxy-3-amino-butane intermediate compounds, useful in the synthesis of HIV-protease inhibitors and methods of preparing these intermediate compounds are disclosed.
专利号:US-2007049757-A1 优先权日:2005-08-26 标题:Methods for the synthesis of substituted amino uracils 发明人:RIEGER JAYSON M; THOMPSON ROBERT 权利人:RIEGER JAYSON M; THOMPSON ROBERT 摘要:The invention provides novel methods of preparing substituted amino uracil compounds that can be employed as useful intermediates in the synthesis of various xanthines. Highly regioselective unsymmetrical amino uracils can be obtained using these methods which is a particular advantage over other existing methods.
专利号:US-7632975-B2 优先权日:2004-12-22 标 题:Process for the synthesis of arylfluorenes and analogs thereof 发明人:HEIDENHAIN SOPHIE 权利人:CDT OXFORD LTD 摘要:A process is provided for the synthesis of a compound of formula (I): n nwherein:n M=0 or 1; N and p are 0 or 1 to 4; X is a single bond, O, S or NH; And R 1 -R 4 are as defined in claim 1.
参考标题:Selectivity Controllable Divergent Synthesis Of α,β-Unsaturated Amides And Maleimides From Alkynes And Nitroarenes Via Palladium-Catalyzed Carbonylation 作者:Jin-Bao Peng,Hui-Qing Geng,Fu-Peng Wu,Da Li,Xiao-Feng Wu |发布日期:2019.7 摘要:A Tunable Procedure On Palladium-Catalyzed Carbonylative Divergent Synthesis Of α,β-Unsaturated Amides And Maleimides From Symmetrical Internal Alkynes And Nitroarenes Has Been Developed. By Using Pd(Acac)2/dppp/4-Clbsa/dmf And Pd(Tfa)2/dpephos/ptsa/h2O/toluene As The Catalytic Systems, A Range Of Multi-Substituted Maleimides And α,β-Unsaturated Amides Were Selectively Prepared In Moderate To Good
合成参考文献
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