专利号:US-7060818-B2 优先权日:2003-02-21 标题:Synthesis of macrocyclic tetraamido compounds and new metal insertion process 发明人:HORWITZ COLIN P; GHOSH ANINDYA 权利人:UNIV CARNEGIE MELLON 摘要:An improved method of synthesizing a macrocyclic tetraamido compound includes protecting the amino portion of an amino carboxylic acid to form a protected amino carboxylic acid; exposing the protected amino carboxylic acid to a first solvent, preferably a hydrocarbon solvent, such as toluene or 1,2-dichloroethane, dichloromethane, dibromomethane and 1,2-dibromoethane. The carboxylic acid portion of the protected amino carboxylic acid is then converted to an activated carboxylic acid by one of esterification or acid halide formation, to form a protected amino activated carboxylic acid derivative. The protected amino activated carboxylic acid derivative is reacted with a diamine in the presence of a second solvent, such as THF or ,2-dichloroethane, dichloromethane, dibromomethane and 1,2-dibromoethane, to form a protected diamide diamine intermediate. Following deprotection, the diamide diamine intermediate is reacted with an activated diacid, such as an activated malonate, oxalate or succinate derivative to form the macrocyclic tetraamido compound. The macrocyclic tetraamido compound may further be complexed with a transition metal.
专利号:US-2011263540-A1 优先权日:2008-07-25 标题 :Small-molecule inhibitors of protein synthesis inactivating toxins 发明人:PANG YUAN-PING; TUMER NILGUN EREKEN; MILLARD CHARLES B 权利人:PANG YUAN-PING; TUMER NILGUN EREKEN; MILLARD CHARLES B 摘要:Small-molecule inhibitors of a protein synthesis inhibiting toxin, e.g., ricin, abrin, Shiga, and Shiga-like toxins, as well as methods of using the inhibitors are provided. Further provided are methods of identifying small-molecule inhibitors of a protein synthesis inhibiting toxin.
专利号:US-2004167329-A1 优先权日:2003-02-21 标 题:Synthesis of macrocyclic tetraamido compounds and new metal insertion process
专利号:WO-2004076425-A1 优先权日:2003-02-21 标题:Improved synthesis of macrocyclic tetraamido compounds and new metal insertion process
专利号:CN-109851658-B 优先权日:2019-01-16 标 题 :A method for one-step synthesis of L-carnosine and truncated L-carnosine synthase
专利号:CN-113481252-A 优先权日:2021-08-11 标题:One-step catalytic synthesis of L-carnosine
参考标题:Synthesis Of S-Thioacyl Dithiophosphates, Efficient And Chemoselective Thioacylating Agentsproofs For The Reversibility Of Isomerisation Of Anhydrides 1 To 2, Melting Points Of Amides And Thioamides Obtained From Anhydrides 5-7 And 1H, 13C Nmr And Ir Data Of Isolated Anhydrides 5-7, 17 Are Available As Supplementary Data. For Direct Access, See Http://www.Rsc.Org/suppdata/p1/b2/b201233B/ 作者:Leszek Doszczak,Janusz Rachon |发布日期:2002.5.10 摘要:Easily Available Acyl Dithiophosphates Are Not Stable And Isomerise Reversibly To O-Thioacyl Monothiophosphates, Especially When Subjected To Heating. Much Slower But Probably Irreversible Isomerisation To S-Thioacyl Monothiophosphates Occurs. Since Equilibrium States Are Established And S-Thioacyl (Mono)Thiophosphates Form Slowly, Reaction Mixtures Contain Generally Both Thioacylating And Acylating Agents, And Consequently Cannot Be Used For Efficient Thioacylation. On The Other Hand, Treatment Of A Mixture Of Isomeric Anhydrides With An Excess Of A Dithiophosphoric Acid Leads To Exclusive Formation Of S-Thioacyl Dithiophosphates. They Appear To Be Excellent Thioacylating Agents: Relatively Stable, Inert Towards Water And Oxygen And Therefore Easy To Handle. Reactions With Nitrogen Or Sulfur Nucleophiles Proceed Very Rapidly Under Ambient Conditions, Yielding Respective Thioacyl Derivatives. Isolation Of The Products Is Very Simple. Due To The Low Reactivity Of S-Thioacyl Dithiophosphates Towards Oxygen Nucleophiles They Can Be Used For Direct Thioacylation Of Multifunctional Nucleophiles With Unprotected Hydroxy Groups. Respective Thioacyl Derivatives Cannot Readily Be Obtained Using Other Methods.
合成参考文献
摘要:Bolduc, T. G.; Thomson, B.; Sammis, G. M., Science of Synthesis, (2020) , 390. 摘要:Sasa, H.; Kita, Y.; Dohi, T., Science of Synthesis: Hypervalent Halogens in Organic Synthesis, (2025) .