(S)-4-Benzyl 1-Methyl 2-(((Benzyloxy)Carbonyl)Amino)Succinate置于palladium On Carbon,氢气体系中,用 甲醇 用作溶剂,化学反应 3.0H,以100%的收率获得l-天门冬氨酸 1-甲酯 参考文献:Synthesis Of β-Lactam Peptidomimetics Through Ugi Mcr: First Application Of Chiral Nβ-Fmoc Amino Alkyl Isonitriles In Mcrs 标题:Synthesis Of β-Lactam Peptidomimetics Through Ugi Mcr: First Application Of Chiral Nβ-Fmoc Amino Alkyl Isonitriles In Mcrs 摘要:Chiral N-Beta-Fmoc Amino Alkyl Isonitriles Were Employed In Ugi Multi Component Reactions (Ugi 4C-3Cr) To Obtain Functionalized Beta-Lactam Peptidomimetics With L-Aspartic Acid Alpha-Methyl Ester/peptide Ester And Organic Aldehydes. The Reactions Were Carried Out In Meoh. Thirteen Ugi Products Have Been Prepared In Good To Moderate Yields With Good Diastereoselectivities. (C) 2011 Elsevier Ltd. All Rights Reserved. Doi:10.1016/j.Tetlet.2011.08.090
专利号:US-2012178961-A1 优先权日:2009-07-02 标题:Bio-derived olefin synthesis 发明人:SANDERS JOHAN PIETER MARINUS; VAN HAVEREN JACOBUS; SCOTT ELINOR; VAN ES DANIEL STEPHAN; LE NOTRE JEROME; SPEKREIJSE JURJEN 权利人:SANDERS JOHAN PIETER MARINUS; VAN HAVEREN JACOBUS; SCOTT ELINOR; VAN ES DANIEL STEPHAN; LE NOTRE JEROME; SPEKREIJSE JURJEN; UNIV WAGENINGEN; STICHTING DIENST LANDBOUWKUNDI 摘要:Disclosed is a method for the combined synthesis of at least two vinylic monomers, at least one of which being an acrylic compound, comprising subjecting a monoconjugated alkene-1-carboxylic compound to reaction with a C 2 -C 4 alkene under conditions of olefin cross-metathesis. The invention is particularly useful for extracting value from protein side streams. Upon protein hydrolysis, suitable amino acids (preferably phenylalanine or tyrosine) are subjected to reductive amination so as to form the corresponding alkene-1-carboxylic acid. Preferably after esterification and separation, this is used in cross-metathesis for the concomitant production of styrene resp. hydroxy styrene, and acrylates. The invention is applicable more widely, to the synthesis of olefins on the basis of carbohydrates, naturally occurring phenolic components, natural protein resources, or amino acids obtained from fermentations.
专利号:US-2024092830-A1 优先权日:2020-12-16 标 题 :Process for preparing carboxyl cyclic acid anhydride 发明人:LU HUA; Tian Ziyou 权利人:UNIV BEIJING 摘要:Disclosed are a method for preparing a carboxyl cyclic acid anhydride and a prepared product thereof. The disclosed method includes the steps of reacting a compound of formula (I) with a cyclization reagent to produce the compound of formula (II) and an acid, and using an epoxy compound as an acid scavenger. The disclosed method is low in cost, and has low requirements for reagents, places and equipment required for experiments, mild conditions, a wide application range of substrates and a high tolerance of functional groups. The synthesis route can recycle some solvents and other high value-added by-products, with less waste liquid discharge and easy amplification. It also has extremely high industrial and academic value, and can greatly promote the rapid mass production and application of products such as polyamino acid, polyhydroxy acid (polyester), and polymercaptic acid (polysulfide).
专利号:WO-2024097744-A2 优先权日:2022-11-01 标题 :Dna-compatible wittig olefination of on-dna peptidyl-ylides for development of on-dna peptidomimetics through diversity-oriented synthesis (dos)
参考标题:Synthetic Studies Of Bacitracin. Viii. Synthesis Of Cyclohexapeptide Moiety 作者:Eisuke Munekata,Yoshihiro Masui,Tetsuo Shiba,Takeo Kaneko |发布日期:1973.10 摘要:For The Purpose Of Synthesis Of Antibiotic Bacitracin Of Six Amino Acids-Membered Ring Formula, The Following Intermediate Peptides, I.E., Cyclo-(Nα-Benzy]Oxycarbonyl-L-Lysyl-Nδ-Cyclopentyloxycarbonyl-D-Ornithyl-L-Isojeucyl-D-Phenylalanyl-L-Histidyl-α-Methyl-L-Aspartyl) (III) And Nα-Benzyloxycarbonyl-Nε-T-Butyloxycarbonyl-L-Lysyl-Nδ-Cyclopentyloxycarbonyl-D-Ornithyl-L-Isoleucyl-D-Phenylalanyl-Nim-Benzyl-L-Histidyl-L-Aspartyl-D-Isoasparagine Benzyl Ester (Iv) Were Prepared. In This Synthesis, Cyclopentyloxycarbonyl Group Was Introduced To Protect δ-Amino Group Of Ornithine Residue And Cleavability Of This Protecting Group For Hydrogen Fluoride Was Investigated.
合成参考文献
摘要:Ohshima, T., Science of Synthesis: Applications of Domino Transformations in Organic Synthesis, (2015) 1, 583.