专利号:US-11548898-B2 优先权日:2017-07-06 标题 :Synthesis of halichondrins 发明人:KISHI YOSHITO; AI YANRAN; YE NING; WANG QIAOYI; YAHATA KENZO; ISO Kentaro; NAINI SANTHOSH REDDY; YAMASHITA SHUJI; LEE JIHOON; OHASHI ISAO; FUKUYAMA TAKASHI 权利人:HARVARD COLLEGE; EISAI R&D MAN CO LTD 摘要:The present invention provides methods for the synthesis of ketones involving a Ni/Zr-mediated coupling reaction. The Ni/Zr-mediated ketolization reactions can be used in the synthesis of halichondrins (e.g., halichondrin A, B, C; homohalichondrin A, B, C; norhalichondrin A, B, C), and analogs thereof. Therefore, the present invention also provides synthetic methods useful for the synthesis of halichondrins, and analogs thereof. Also provided herein are compounds (i.e., intermediates) useful in the synthesis of halichondrins, and analogs thereof. In particular, the present invention provides methods and compounds useful in the synthesis of compound of Formula (H3-A).
专利号:US-2024424490-A1 优先权日:2021-01-25 标 题 :Method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles 发明人:WNUK PAWEL; LEWERA ADAM; JURCZAKOWSKI RAFAL; POWALA FILIP; KOLODZIEJCZYK JAN 权利人:UNIV WARSZAWSKI 摘要:The presented invention relates to a method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles, which comprises the following steps:n adsorbing on carbon support complexes of a platinum group metal with a urea complexing agent selected from a group comprising urea, urea derivative, a mixture of urea with at least one urea derivative, and a mixture of at least two urea derivatives; and reducing the complexes adsorbed on the carbon support to metal nanoparticles, forming a product of carbon-supported metal nanoparticles. nn The invention also provides the use of the carbon-supported platinum group metal or metal alloy nanoparticles obtained by the method of the invention as catalyst. n The present invention further relates to a method of adsorption of precursors of platinum group metals on the surface of a carbon support and use of complexes of platinum group metals with urea complexing agent for adsorption of platinum group metal precursors on carbon support.
专利号:US-2023286918-A1 优先权日:2020-07-02 标 题:Manufacturing process for 3,5-dichloropicolinonitrile for synthesis of vadadustat 发明人:JURKAUSKAS VALDAS; JUNG YOUNG CHUN; KWON TAESOO; KANNAN ARUNACHALAM; GONDI VIJAYA BHASKER 权利人:AKEBIA THERAPEUTICS INC 摘要:Disclosed herein are methods and processes of preparing vadadustat or a pharmaceutically acceptable salts thereof, and intermediates (e.g., a compound of Formula (I), (I-F), (II), or (IV), or a pharmaceutically acceptable salts thereof) useful for the synthesis of vadadustat.
专利号:US-6844461-B2 优先权日:2001-07-30 标 题:Synthesis of A-ring synthon of 19-NOR-1α,25-dihydroxyvitamin D3 from (D)-glucose 发明人:DELUCA HECTOR F; SHIMIZU MASATO; YAMADA SACHIKO 权利人:WISCONSIN ALUMNI RES FOUND 摘要:The present invention provides a method for the synthesis of an A-ring synthon phosphine oxide used in the preparation of 19-nor vitamin D compounds, and to novel synthetic intermediates formed during the synthesis. The new method prepares the phosphine oxide from (D)-glucose.
专利号:US-2003138880-A1 优先权日:2001-08-24 标 题:Solid-phase synthesis of oligosaccharides and glycopeptides using glycosynthases 发明人:WITHERS STEPHEN G; JENSEN KNUD J; PETERSEN LARS; TOLBORG JAKOB L 权利人:UNIV BRITISH COLUMBIA 摘要:The present invention provides materials and methods for the solid-phase synthesis of oligosaccharides and glycopeptides. Such materials and methods include mutant glycosidase enzymes, or “glycosynthases,†chemically-derivatized acceptor molecules, and specific solid support matrices.
专利号:US-9938297-B2 优先权日:2014-08-04 标 题:Process for the synthesis of everolimus and intermediates thereof 发明人:RAO DHARMARAJ RAMACHANDRA; MALHOTRA GEENA; PULLELA VENKATA SRINIVAS; ACHARYA VINOD PARAMESHWARAN 权利人:CIPLA LTD; CIPIA LTD 摘要:The present invention relates to a novel process for the synthesis of everolimus of formula (I): n nand intermediates thereof.