合成目标产物 Glycine Ethyl Ester Hydrochloride 主要起始原料 Ethanol And Glycine
(文献来源)合成步骤主要原料 Ethanol 和 Glycine
N,N-二苄基甘氨酸乙酯置于1,1,2-三氯乙烷,10% Palladium On Activated Carbon,氢气体系中,用 甲醇 作为反应溶剂,化学反应 1.0H,以99%的收率获得产物甘氨酸乙酯盐酸盐 参考文献:Highly Chemoselective Pd−c Catalytic Hydrodechlorination Leading To The Highly Efficient N-Debenzylation Of Benzylamines 标题:Highly Chemoselective Pd−c Catalytic Hydrodechlorination Leading To The Highly Efficient N-Debenzylation Of Benzylamines 摘要:In The Presence Of 1,1,2-Trichloroethane,A Novel Procedure For The Pd-C Catalytic N-Debenzylation Of Benzylamines Was Established. The Method Proceeded In A Synergistic Catalytic System And Directly Gave The Products As Crystal Amine Hydrochlorides In Practically Quantitative Yields. DOI:10.1021/jo9007282
专利号:US-3855198-A 优先权日:1972-09-29 标 题:Novel intermediates for synthesis of l-(5-oxoprolyl)-l-histidy-l-tryptophyl-l-seryl-l-tyrosyl-l-glycyl-l-leucyl-l-arginyl-l-prolyl-glycine amide 发明人:SARANTAKIS D 权利人:AMERICAN HOME PROD 摘要:A process for the synthesis of LRF, i.e. L-(5-oxoprolyl)-Lhistidyl-L-tryptophyl-L-seryl-L-tyrosyl-glycyl-L-leucyl -Larginyl-L-prolyl-glycine amine by the classical route is described which comprises coupling a tetrapeptide, azide terminated, representing the 3-6 amino acid sequence in LRF with a C-amide terminated tetrapeptide representing the 7-10 amino acid sequence in LRF and thereafter converting the resulting octapeptide to LRF. Novel tetrapeptides and octapeptides useful as intermediates are described.
专利号:US-11401297-B2 优先权日:2019-10-07 标题:Synthesis of glycoconjugate derivatives of a bile acid 发明人:RESTELLI ALESSANDRO; CARBONI PHILIPP; RAZZETTI GABRIELE 权利人:DIPHARMA FRANCIS SRL 摘要:Processes for the synthesis and purification of glycoconjugate derivatives of cholic acid of formula (I)are provided herein.
专利号:US-6423871-B1 优先权日:1999-02-26 标题 :Efficient synthesis of secondary amines by selective alkylation of primary amines 发明人:JUNG KYUNG WOON 权利人:UNIV SOUTH FLORIDA 摘要:A method for selective mono-N-alkylation of primary amines to produce secondary amines that are substantially free of overalkylated tertiary amines and quaternary ammonium salts, under mild reaction conditions without the necessity of protecting groups. Compounds of the class of secondary amines are produced by reacting an alkyl halide with an alkyl amine in anhydrous solvent, preferably dimethyl sulfoxide or N,N-dimethylformamide, in the presence of 0.1 to 3 molar equivalents of a cesium base. Optionally, the extent and selectivity of mono-N-alkylation is enhanced by addition to the reaction mixture of a powdered molecular sieve material for removal of water produced by the reaction, and/or tetrabutylammonium iodide to promote halide exchange. The invention permits selective and efficient mono-N-alkylation of a wide variety of substrates at 23° C.; does not cause racemization when used with enantiomerically-pure chiral substrates such as L-α-aminoesters; and is applied to solid phase synthesis whereby either the alkyl amine or alkyl halide is immobilized. The method is additionally used to produce polyamines, such as N-(2-(2-aminoethylthio)ethyl)ethylenediamine in 73% yield.
专利号:US-4965397-A 优先权日:1989-01-23 标题:Novel dibasic acid salts and their synthesis 发明人:SCHACHT ETIENNE; CROMMEN JAN 权利人:ETHYL CORP 摘要:The protecting group, Z, of protected alpha-amino acid esters of the formula n n Z--NH--CH(R.sub.2)COOCH(R)COOR.sub.1 n n is removed in the presence of a dibasic acid such as oxalic acid. This results in the formation of a new type of salt of an amino acid ester which may be represented by the formula ##STR1## In the above Q is a divalent hydrocarbyl residue of a dibasic acid, R is a hydrogen atom or hydrocarbyl group, R 1 is a hydrocarbyl group, R 2 is a hydrogen atom or hydrocarbyl group, and p is zero or one, preferably zero. When p is zero, the salts are oxalate salts. When p is one, the salts are salts of other dibasic acids. The salts (II) are useful as reactants in the synthesis of amino-acid substituted phosphazene polymers.
专利号:US-2024182642-A1 优先权日:2022-11-23 标 题:Green synthesis of amino acid based poly(ester urea)s 发明人:OLSEN BRADLEY DAVID; FRANSEN KATHARINA 权利人:MASSACHUSETTS INST TECHNOLOGY 摘要:Disclosed are methods of synthesizing poly(ester urea)s.
专利号:US-2009215986-A1 优先权日:2006-03-08 标题:Solution Synthesis of Peptide Cell Growth Stimulators 发明人:EPSTEIN DAVID; KRUSZYNSKI MARIAN F; MARSH CHRISTOPHER; SCHMIDT ALBERT 权利人:EPSTEIN DAVID; KRUSZYNSKI MARIAN F; MARSH CHRISTOPHER; SCHMIDT ALBERT 摘要:A solution phase synthetic method for preparing basic tripeptides of the formula Gly-Xaa-Gly-X which have in various biological properties such as stimulating protein production when used as additives in a bioreactor. The basic tripeptides of the invention may be produced on gram or kilogram scale.
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合成参考文献
摘要:Wong, Y.-S., Science of Synthesis, (2009) 46, 626. 摘要:Davies, G. H. M.; Wisniewski, S. R., Science of Synthesis Knowledge Updates, (2021) 2, 155. 摘要:Lubell, W. D.; St-Cyr, D. J.; Dufour-Gallant, J.; Hopewell, R.; Boutard, N.; Kassem, T.; Dörr, A.; Zelli, R., Science of Synthesis Knowledge Updates, (2013) 1, 212. 摘要:Kleemann A., Kutscher B., Reichert D., Bossart M., Pharmaceutical Substances, Thieme [Online], Stuttgart, (2025). 摘要:Liao, L.; Zhang, Y.; Yu, J.-S., Science of Synthesis: Knowledge Updates, (2024) 1, 236.