专利号:US-5919969-A 优先权日:1996-06-05 标 题 :Synthesis of yellow couplers 发明人:CRAWLEY MICHAEL W 权利人:EASTMAN KODAK CO 摘要:The invention provides a method of synthesis of a image-dye forming coupler of formula (I) wherein X is a substituent linked to the coupler by an atom of oxygen, sulfur or nitrogen R1 is an alkyl or aryl group, R2 is a hydrogen atom or an alkyl group; R3 to R7 are the same or different and selected from a hydrogen atom and substituent groups; which method comprises the reaction of a compound of formula (II) wherein R and R1 are the same or different and are as defined above for R1 and X is as defined above with a compound of formula (III) wherein R2 to R7 are as defined above, in the presence of an inert organic solvent.
专利号:US-7368568-B2 优先权日:2001-08-03 标 题 :Protected 3,5-dihydroxy-2,2-dimethyl-valeroamides for the synthesis of epothilones and derivatives and process for production and the use 发明人:WESTERMANN JURGEN; PLATZEK JOHANNES; PETROV ORLIN 权利人:BAYER SCHERING PHARMA AG 摘要:The invention relates to new protected 3,5-dihydroxy-2,2-dimethyl-valeroarnides for the synthesis of edothilones and derivatives and process for the production and the use of the new compounds for the production of epothilones or epothilone derivatives.
专利号:US-6933385-B2 优先权日:2001-08-03 标题 :Protected 3,5-dihydroxy-2,2-dimethyl-valeroamides for the synthesis of epothilones and derivatives and process for the production and the use 发明人:WESTERMANN JURGEN; PLATZEK JOHANNES; PETROV ORLIN 权利人:SCHERING AG 摘要:The invention relates to new protected 3,5-dihydroxy-2,2-dimethyl-valeroamides for the synthesis of epothilones and derivatives and process for the production and the use of the new compounds for the production of epothilones or epothilone derivatives.
专利号:US-7781488-B2 优先权日:2002-06-10 标 题:Post-cleavage sulfur deprotection for convergent protein synthesis by chemical ligation 发明人:BOTTI PAOLO; VILLAIN MATTEO; MANGANIELLO SONIA; GAERTNER HUBERT 权利人:AMYLIN PHARMACEUTICALS INC 摘要:The present invention provides a method and compositions for synthesizing an oligopeptide or polypeptide by convergent assembly of a plurality of pairs of oligopeptides in chemical ligation reactions. An important aspect of the present invention is an oligopeptide having a C-terminal disulfide-protected carboxythioester group that can be deprotected to spontaneously generate a free C-terminal thioester moiety. This allows a single precursor to participate in a succession of chemical ligation reactions, thereby making the convergent synthesis approach possible. The present invention is useful in methods for chemical synthesis of oligopeptides, polypeptides and proteins, and improves the efficiency of native chemical ligation reactions, particularly where four or more peptide fragments are used to assemble an oligopeptide, polypeptide or protein product.
专利号:US-9908846-B2 优先权日:2014-02-21 标题:Composition, synthesis, and use of new arylsulfonyl isonitriles 发明人:FLEMING FRASER FERGUSSON; LUJAN MONTELONGO JESUS ARMANDO 权利人:DUQUESNE UNIV OF THE HOLY GHOST; UNIV HOLY GHOST DUQUESNE 摘要:This invention relates to novel isonitriles, including arylsulfonyl isonitriles, and methods for their synthesis. The isonitriles include a conjugated ring system. The structure is designed with the flexibility to have multiple substitution patterns. The isonitriles may be used in applications including, but not limited to, pharmaceutical compositions.
专利号:US-2020190135-A1 优先权日:2016-11-16 标题 :Lasso structures and their synthesis 发明人:BODE JEFFREY; SAITO FUMITO 权利人:CHROMACON AG 摘要:A method for the synthesis of a molecular lasso structure in which a linear moiety is covalently attached to a cyclic moiety and with its free end is partially threaded through the orifice formed by the cyclic moiety, including the following steps: 1) provision of a cyclic and a first linear structural element and establishing conditions in which the first linear structural element is threaded through the orifice of the cyclic moiety; 2) covalently attaching a stopper element to one terminal end of the linear structural element; 3) separating unthreaded from threaded molecular assemblies by chemical or physical separation; and 4) reacting the threaded molecular assemblies with a second linear structural element so that it is covalently attached to the first linear structural element at its end opposite to the end where the stopper is attached, and so that the second linear structural element is covalently attached to the cyclic moiety.