专利号:US-11512303-B2 优先权日:2017-05-27 标 题 :Engineered polypeptides and their applications in the synthesis of beta-hydroxy-alpha-amino acids 发明人:CHEN HAIBIN; BONG YONG KOY; XU QING; ZHOU AMENG; SHEN TIANRAN; YANG JIADONG; YANG ZHUHONG 权利人:ENZYMASTER NINGBO BIO ENG CO LTD 摘要:The present invention provides engineered polypeptides that are useful for the asymmetric synthesis of β-hydroxy-α-amino acids under industrial-relevant conditions. The engineered polypeptides disclosed in this invention were developed through directed evolution based on the ability of catalytic synthesis of (2S, 3R)-2-amino-3-hydroxy-3-(4-nitrophenyl) propanoic acid. The present disclosure also provides polynucleotides encoding engineered polypeptides, host cells capable of expressing engineered polypeptides, and methods of producing β-hydroxy-α-amino acids using engineered polypeptides. Compared to other processes of preparation, the use of the engineered polypeptides of the present invention for the preparation of β-hydroxy-α-amino acids results in high purity of the desired stereoisomers, mild reaction conditions, low pollution and low energy consumption. So, it has good industrial application prospects.
专利号:US-11542269-B2 优先权日:2018-01-03 标 题:Prins reaction and compounds useful in the synthesis of halichondrin macrolides and analogs thereof 发明人:CHOI HYEONG-WOOK; FANG FRANCIS G 权利人:EISAI R&D MAN CO LTD 摘要:The invention provides methods utilizing Prins reaction in the preparation of compounds that may be useful as intermediates in the synthesis of halichondrin macrolides and analogs thereof. The invention also provides compounds that may be useful as intermediates in the synthesis of a halichondrin macrolides and methods for preparing the same.
专利号:WO-2023102600-A1 优先权日:2021-12-06 标题:Synthesis of amphiphilic block copolymers and polymeric nanofibers produced therefrom 发明人:ZETTERLUND PER B; ISHIZUKA FUMI; KIM HYUN JIN; CHATANI SHUNSUKE; NIINO HIROSHI 权利人:NEWSOUTH INNOVATIONS PTY LTD 摘要:The present disclosure relates to the field of synthesis of block copolymers, and polymeric nanofibers having a core-shell morphology produced therefrom. The present disclosure relates to the field of synthesis of block copolymers where one block is more hydrophobic than the other block and is a different composition. The disclosure also relates to uses of these polymeric nanofibers in various applications, such as reinforcing a polymeric matrix and for coatings applications.
专利号:US-10913749-B2 优先权日:2015-05-07 标 题 :Macrocyclization reactions and intermediates and other fragments useful in the synthesis of halichondrin macrolides 发明人:FANG FRANCIS G; KIM DAE-SHIK; CHOI HYEONG-WOOK; CHASE CHARLES E 权利人:EISAI R&D MAN CO LTD 摘要:The invention provides methods for the synthesis of a halichondrin macrolides through a macrocyclization strategy. The macrocyclization strategy of the present invention involves subjecting a non-macrocyclic intermediate to a carbon-carbon bond-forming reaction (e.g., an olefination reaction (e.g., Horner-Wadsworth-Emmons olefination), catalytic Ring-Closing Olefin Metathesis, or Nozaki-Hiyama-Kishi reaction) to afford a macrocyclic macrolide. The invention also provides compounds useful as intermediates in the synthesis of a halichondrin macrolides and methods for preparing the same.
专利号:US-11136335-B2 优先权日:2016-06-30 标题:Prins reaction and intermediates useful in the synthesis of halichondrin macrolides and analogs thereof 发明人:CHASE CHARLES E; CHOI HYEONG-WOOK; ENDO ATSUSHI; FANG FRANCIS G; KIM DAE-SHIK 权利人:EISAI R&D MAN CO LTD 摘要:The invention provides methods for the synthesis of a halichondrin macrolides or analogs thereof through a cyclization reaction strategy. The strategy of the present invention involves subjecting an intermediate to Prins reaction conditions to afford a macrolide. The invention also provides compounds useful as intermediates in the synthesis of a halichondrin macrolides or analogs thereof and methods for preparing the same.
专利号:US-6376649-B1 优先权日:1998-12-18 标题 :Methods for the synthesis of α- hydroxy-β-amino acid and amide derivatives 发明人:SEMPLE JOSEPH E; LEVY ODILE E 权利人:CORVAS INT INC 摘要:Methods for the synthesis of alpha-hydroxy-beta-amino acid and amide derivatives and alpha-ketoamide derivatives and novel derivatives made by these methods are provided. These methods involve reacting a N-terminally blocked (protected) aminoaldehyde with an isonitrile and a carboxylic acid to give an amino-alpha-acyloxy carboxamide. The acyloxy group may be removed to give the derivative. Alternatively the protecting group is removed and acyl shift occurs to give the derivative. These derivatives are useful in the synthesis of compounds such as peptidyl alpha-ketoamides and alpha-hydroxy-beta-carboxylic acid and amide derivatives. Certain of these compounds have been reported to have activity as inhibitors of proteases, such as serine proteases and cysteine proteases.
1: El-Maghrabey M, Kishikawa N, Kuroda N. 9,10-Phenanthrenequinone as a mass-tagging reagent for ultra-sensitive liquid chromatography-tandem mass spectrometry assay of aliphatic aldehydes in human serum. J Chromatogr A. 2016 Sep 2;1462:80-9. doi: 10.1016/j.chroma.2016.07.082. Epub 2016 Jul 29. doi: 10.1371/journal.pone.0141208. eCollection 2015. 3: Kou KG, Le DN, Dong VM. Rh(I)-catalyzed intermolecular hydroacylation: enantioselective cross-coupling of aldehydes and ketoamides. J Am Chem Soc. 2014 Jul 2;136(26):9471-6. doi: 10.1021/ja504296x. Epub 2014 Jun 17. 4: Bosse AK, Fraatz MA, Zorn H. Formation of complex natural flavours by biotransformation of apple pomace with basidiomycetes. Food Chem. 2013 Dec 1;141(3):2952-9. doi: 10.1016/j.foodchem.2013.05.116. Epub 2013 Jun 5. doi: 10.1039/c2dt31738a. doi: 10.1002/cbic.201200225. Epub 2012 May 21. doi: 10.1002/ptr.3419. Epub 2011 Mar 11. doi: 10.1039/c0dt01074j. Epub 2011 Jan 24. doi: 10.1007/s00359-010-0580-y. Epub 2010 Sep 7. doi: 10.1021/ja909619a. doi: 10.1089/jmf.2008.0164. Erratum in: Org Lett. 2003 Sep 4;5(18):3365.
合成参考文献
参考文献:10.1007/s00216-010-3516-z 摘要:Knecht MR, Pacardo DB. Employing high-resolution materials characterization to understand the effects of Pd nanoparticle structure on their activity as catalysts for olefin hydrogenation. Analytical and Bioanalytical Chemistry. 2010 Feb 16;397(3):1137–55. doi: 10.1007/s00216-010-3516-z.