果糖置于lead(Iv) Acetate,溶剂黄146体系中,化学反应生成 D-(+)-甘油醛 参考文献:Preparation Of D-And L-Glyceraldehyde From Ketohexoses 标题:Preparation Of D-And L-Glyceraldehyde From Ketohexoses 摘要:不可用 DOI:10.1139/v56-008
专利号:US-9034844-B2 优先权日:2009-04-06 标 题 :6′-sialyllactose salts and process for their synthesis and for the synthesis of other alpha-sialyloligosaccharides 发明人:TAMERLANI GIANCARLO; LOMBARDI ILARIA; BARTALUCCI DEBORA; DANESI ANDREA; SALSINI LIANA; MANONI MARCO; CIPOLLETTI GIOVANNI 权利人:TAMERLANI GIANCARLO; LOMBARDI ILARIA; BARTALUCCI DEBORA; DANESI ANDREA; SALSINI LIANA; MANONI MARCO; CIPOLLETTI GIOVANNI; INALCO SPA 摘要:The present invention relates to a process of synthesis of α-sialyl oligosaccharides and in particular of 6′-sialyllactose and its salts comprising a step of coupling by Koenigs-Knorr reaction under conditions that allow its use on an industrial scale.
专利号:US-9938509-B2 优先权日:2010-12-08 标 题 :Biocatalysts and methods for the synthesis of armodafinil 发明人:ANG EE LUI; ALVIZO OSCAR; BEHROUZIAN BEHNAZ; CLAY MICHAEL D; COLLIER STEVEN J; EBERHARD ELLEN D; FAN FU; SONG SHIWEI; SMITH DEREK J; WIDEGREN MAGNUS; WILSON ROBERT; XU JUNYE; ZHU JUN 权利人:CODEXIS INC 摘要:The present invention relates to non-naturally occurring polypeptides useful for preparing armodafinil, polynucleotides encoding the polypeptides, and methods of using the polypeptides. The non-naturally occurring polypeptides of the present invention are effective in carrying out biocatalytic conversion of the (i) 2-(benzhydrylsulfinyl)acetamide to (−)-2-[(R)-(diphenylmethyl)sulfinyl]acetamide (armodafinil), or (ii) benzhydryl-thioacetic acid to (R)-2-(benzhydrylsulfinyl)acetic acid, which is a pivotal intermediate in the synthesis of armodafinil, in enantiomeric excess.
专利号:US-7229797-B1 优先权日:1999-08-20 标 题:Enzymatic synthesis of deoxyribonucleosides 发明人:TISCHER WILHELM; IHLENFELDT HANS-GEORG; BARZU OCTAVIAN; SAKAMOTO HIROSHI; PISTOTNIK ELISABETH; MARLIERE PHILIPPE; POCHET SYLVIE 权利人:PASTEUR INSTITUT 摘要:The present invention relates to a method for the in vitro enzymatic synthesis of deoxyribonucleosides and enzymes suitable for this method.
专利号:US-10973847-B2 优先权日:2017-06-30 标题 :Core-to-surface polymerization for the synthesis of star polymers and uses thereof 发明人:JOHNSON JEREMIAH A; GOLDER MATTHEW R 权利人:MASSACHUSETTS INST TECHNOLOGY 摘要:Disclosed are methods, compositions, reagents, systems, and kits to prepare star polymers, as well as compositions and uses thereof. Various embodiments show that synthesis of these polymers contain low metal concentration to provide polymers for diverse biomedical applications including in vivo applications.
专利号:WO-9516049-A1 优先权日:1993-12-08 标题 :Catalytic chemo-enzymatic asymmetric synthesis of carbohydrates 发明人:WONG CHI-HUEY; SHARPLESS BARRY K 权利人:SCRIPPS RESEARCH INST; WONG CHI HUEY; SHARPLESS BARRY K 摘要:A stereoselective synthesis of carbohydrates employs two key stereoselective steps, viz. an osmium-catalyzed asymmetric dihydroxylation (AD) of an alkene to form an aldol intermediate and an aldolase-catalyzed aldol addition reaction wherein the aldol intermediate is elongated by the addition of a ketone. Moreover, ketoses having four new stereocenters can be synthesized without the use of chiral starting materials. The stereoselectivity of the asymmetric dihydroxylation (AD) reaction is determined by the cis or trans (Z or E) stereoisomeric configuration of the alkene and by the choice of AD-mix, i.e., an AD-mix-α or AD-mix-β. The stereoselectivity of the aldolase-catalyzed addition reaction is determined by the choice of aldolase and by the stereochemistry of the aldol intermediate. Four aldolases with broad substrate specificity are sufficient to produce all possible enantiomeric combinations of the two hydroxymethylene stereocenters formed during the aldol addition reaction. Accordingly, a synthetic scheme combining an osmium-catalyzed asymmetric dihydroxylation (AD) reaction and an aldolase-catalyzed aldol addition reaction enables direct access to a wide range of carbohydrate derivatives containing up to four new hydroxymethylene stereocenters.
专利号:US-7491520-B2 优先权日:2004-01-19 标题 :Biochemical synthesis of 6-amino caproic acid 发明人:RAEMAKERS-FRANKEN PETRONELLA C; NOSSIN PETRUS M M; BRANDTS PAUL M; WUBBOLTS MARCEL G; PEETERS WIJNAND P H; ERNSTE SANDRA; WILDEMAN DE STEFAAN M A; SCHUERMANN MARTIN 权利人:DSM IP ASSETS BV 摘要:The invention relates to biochemical synthesis of 6-amino caproic acid from 6-aminohex-2-enoic acid compound or from 6-amino-2-hydroxyhexanoic acid, by treatment with an enzyme having α,β-enoate reductase activity towards molecules containing an α,β-enoate group and a primary amino group. The invention also relates to processes for obtaining suitable genetically engineered cells for being used in such biotransformation process, and to precursor fermentation of 6-amino caproic acid from intermediates leading to 6-amino caproic acid. Finally, the invention relates to certain novel biochemically produced compounds, namely 6-aminohex-2-enoic acid, 6-aminohexanoic acid, as well as to caprolactam produced therefrom and to nylon-6 and other derivatives produced from such biochemically produced compounds or caprolactam.
参考标题:Borate As A Phosphate Ester Mimic In Aldolase-Catalyzed Reactions: Practical Synthesis Ofl-Fructose Andl-Iminocyclitols 作者:Masakazu Sugiyama,Zhangyong Hong,Lisa J. Whalen,William A. Greenberg,Chi-Huey Wong |发布日期:2006.12 摘要:Dihydroxyacetone Phosphate (Dhap)-Dependent Aldolases Have Been Widely Used For The Organic Synthesis Of Unnatural Sugars Or Derivatives. The Practicality Of Using Dhap-Dependent Aldolases Is Limited By Their Strict Substrate Specificity And The High Cost And Instability Of Dhap. Here We Report That The Dhap-Dependent Aldolase L-Rhamnulose 1-Phosphate Aldolase (Rhad) Accepts Dihydroxyacetone (Dha)
合成参考文献
摘要:Clapés, P.; Fessner, W.-D., Science of Synthesis: Stereoselective Synthesis, (2011) 2, 690. 摘要:Clapés, P.; Fessner, W.-D., Science of Synthesis: Stereoselective Synthesis, (2011) 2, 727. 摘要:Clapés, P.; Fessner, W.-D., Science of Synthesis: Stereoselective Synthesis, (2011) 2, 693. 摘要:Clapés, P., Science of Synthesis: Biocatalysis in Organic Synthesis, (2015) 2, 63. 摘要:Oroz-Guinea, I.; Fernández-Lucas, J.; Hormigo, D.; García-Junceda, E., Science of Synthesis: Biocatalysis in Organic Synthesis, (2015) 3, 483.