专利号:US-2022298204-A1 优先权日:2019-07-05 标题 :Synthesis of a-amanitin and its derivatives 发明人:SIEGERT MARY-ANN; KNITTEL CAROLINE HERTA; SÜSSMUTH RODERICH 权利人:PURE BIOORGANICS SIA 摘要:The present invention relates to the chemical synthesis of α-amanitin and its derivatives. The present invention also relates to intermediate products of the α-amanitin synthesis.
专利号:US-2006264608-A1 优先权日:2001-08-03 标题 :Bi-directional synthesis of oligoguanidine transport agents 发明人:WENDER PAUL A; VANDEUSEN CHRISTOPHER L; PATTABIRAMAN KANAKA; PELKEY ERIN T; JESSOP THEODORE C 权利人:WENDER PAUL A; VANDEUSEN CHRISTOPHER L; PATTABIRAMAN KANAKA; PELKEY ERIN T; JESSOP THEODORE C 摘要:Synthesis routes that can be adapted to large scale synthesis of oligoguanidine compounds such as oligoarginine compounds are described which use a perguanidinylation step to convert a group of ω-amino groups to the corresponding guanidinyl groups. These compounds find utility as transport agents. Modified oligoguanidine compounds are also described.
专利号:US-8058414-B2 优先权日:2008-04-29 标题 :Unnatural polymerase substrates that can sustain enzymatic synthesis of double stranded nucleic acids from a nucleic acid template and methods of use 发明人:MENCHEN STEVEN; ROSENBLUM BARNETT; KENNEY PAUL; KHAN SHOEB; MA ZHAOCHUN; CHEN JER-KANG; LAM JOE Y; HUANG BOLI 权利人:MENCHEN STEVEN; ROSENBLUM BARNETT; KENNEY PAUL; KHAN SHOEB; MA ZHAOCHUN; CHEN JER-KANG; LAM JOE Y; HUANG BOLI; LIFE TECHNOLOGIES CORP 摘要:Nucleotide analogs that can sustain the enzymatic synthesis of double-stranded nucleic acid from a nucleic template are described. The nucleotide analogs include: (i) a base selected from the group consisting of adenine, guanine, cytosine, thymine, uracil and their analogs; (ii) a label attached to the base or analog of the base via a cleavable linker; (iii) a deoxyribose; and (iv) one or more phosphate groups. The linker and/or the label inhibits template directed polymerase incorporation of a further nucleotide substrate onto an extended primer strand. In addition, cleavage of the linker leaves a residue attached to the base which is not present in the natural nucleotide and which does not inhibit extension of the primer strand. The nucleotide analogs can therefore be used as reversible terminators in sequencing by synthesis methods without blocking the 3′ hydroxyl group. Methods of sequencing DNA using the substrates are also described.
专利号:US-7705136-B2 优先权日:2005-02-25 标 题 :Synthesis of 3′-, or 5′-, or internal methacrylamido-modified oligonucleotides 发明人:GOLOVA JULIA B; CHERNOV BORIS K 权利人:UCHICAGO ARGONNE LLC 摘要:New modifiers were synthesized for incorporation of a methacrylic function in 3′-, 5′- and internal positions of oligonucleotides during solid phase synthesis. A modifier was used for synthesis of 5′-methacrylated oligonucleotides for preparation of microarrays by a co-polymerization method.
专利号:US-6252105-B1 优先权日:1998-07-06 标题:Synthesis of low-fluoride organic compounds 发明人:BRAUN MAX; EICHER JOHANNES; JANSSENS FRANCINE; EICHHOLZ KERSTIN; PALSHERM STEFAN 权利人:SOLVAY FLUOR & DERIVATE 摘要:Organic compounds, e.g. fluorinated organic compounds such as fluorinated carboxylic acids or fluorinated carboxylic acid chlorides, may contain small amounts of carboxylic acid fluorides, hydrogen fluoride or hydrolyzable fluoride, which during the preparation of derivatives of the fluorinated organic compounds, for example by esterification, may yield corrosive fluorides or hydrogen fluoride. The invention is a method for the synthesis and/or purification of preferably fluorinated organic compounds such as carboxylic acids, carboxylic acid chlorides and derivatives such as esters thereof, starting from corresponding carboxylic acid chlorides containing acid fluorides or hydrolyzable fluoride, and alcohols under the catalytic action of 'onium' salts of carboxylic acids, to obtain products which have a low fluoride content. Alternatively, an inorganic oxide adsorbent is utilized. The method is especially suitable for the synthesis of esters of trifluoroacetic acid, chlorodifluoroacetic acid, trifluoroacetoacetic acid and/or difluoroacetoacetic acid.
专利号:US-5763587-A 优先权日:1987-11-27 标题:Process for the synthesis of amikacin 发明人:MANGIA ALBERTO 权利人:GIST BROCADES ITALY SPA 摘要:In the synthesis of amikacin, having the formula: (I) by acylation of a diprotected derivative of kanamycin A with a reactive derivative of L-(-)-4-amino-2-hydroxybutyric acid, the selection of the reaction solvent and of the pH conditions permit the industrial economically and the synthesis yield to be improved.