首页 / 专利分类库 / 有机化学 / 糖类;及其衍生物;核苷;核苷酸;核酸 / 含有糖化物基团的化合物,其中连在氧上的杂键被相同数目连到卤素、氮、硫、硒或碲的杂键所取代
序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
41 Electrochemical synthesis of chloro-chitosan US14374948 2013-02-01 US09518077B2 2016-12-13 Gary P. Halada; Prashant Kumar Jha
The present disclosure provides methods for producing chitosan derivatives and the derivatives formed by these methods. The processes of the present disclosure utilize electrochemical methods to functionalize and/or modify amine and/or hydroxyl groups present on chitosan, to form new derivatives. In embodiments, a chloro-chitosan derivative may be prepared. The altered cationic affinity of these derivatives make them excellent candidates for biomedical applications, including pharmaceuticals, as well as food applications.
42 Polysaccharides comprising carboxyl functional groups substituted by a hydrophobic alcohol derivative US12588149 2009-10-06 US20100167991A1 2010-07-01 Remi Soula; Olivier Soula; Gerard Soula; Richard Charvet
The invention relates to a polysaccharide comprising carboxyl functional groups, one at least of which is substituted by a derivative of a hydrophobic alcohol. The invention also relates to a pharmaceutical composition comprising one of the polysaccharides according to the invention and at least one active principle. It also relates to a pharmaceutical composition, wherein the active principle is chosen from the group consisting of proteins, glycoproteins, peptides and nonpeptide therapeutic molecules. The invention also relates to the use of the functionalized polysaccharides according to the invention in the preparation of pharmaceutical compositions as described above.
43 ENZYMATIC SUBSTRATES FOR MULTIPLE DETECTION SYSTEMS US12403790 2009-03-13 US20090253117A1 2009-10-08 Blas Cerda; Mark Norman Bobrow
An inventive substrate is provided which includes a substrate compound of formula A-B1-B2-B3-B4: wherein A is a sugar moiety; B1 is a linker moiety allowing the conjugation of moiety A and the remaining structure of the substrate; B2 is a linker moiety with a free reactive amino group so as to be available for reaction with carboxylic acids or detectable tags; B3 contains a permanently charged element such as a quaternary ammonium group so as to increase sensitivity for mass spectrometry analysis; and B4 of various carbon length conferring specificity amongst individual substrates in detection methods. Also provided is a molecule of the formula B1-B2-B3-B4, with similar structural characteristics to an enzymatic product produced by the action of a target enzyme on an inventive substrate. Further provided are methods for using inventive substrates for detecting enzymatic activity.
44 Gene encoding a DNA repair enzyme and methods of use thereof US11739558 2007-04-24 US07491807B2 2009-02-17 Alfonso Bellacosa
An isolated nucleic acid molecule encoding a human DNA repair enzyme, MED1, is disclosed. Like other mismatch repair genes which are mutated in certain cancers, MED1, encoding nucleic acids, proteins and antibodies thereto may be used to advantage in genetic or cancer screening assays. MED1, which recognizes and cleaves DNA, may also be used for the diagnostic detection of mutations and genetic variants.
45 Micelles US10204227 2001-02-20 US06906042B2 2005-06-14 James McShane; Tori Arens; Kazuhiro Kaneko; Tomohiro Watanabe; Kazuhide Ashizawa
The invention provides micelles, pharmaceutical formulations comprising micells, solutions comprising micells, methods for preparing micells, methods for delivering micells to patients, and methods for treating sepsis, endotoxemia, septic shock and systemic inflamatory response syndrome in patients by adiministering micelles. The micelles comprises compounds of Forumala (A): wherein the substituents are as defined herein.
46 Prodrugs and conjugates of thiol- and selenol-containing compounds and methods of use thereof US10051463 2002-01-18 US06841536B2 2005-01-11 Jeannette C. Roberts; Britta H. Wilmore; Pamela B. Cassidy; Pamela K. Dominick; Megan D. Short
Disclosed is a prodrug of the formula: where A is a sulfur or a selenium, and R is derived from a mono- di- or oligo- saccharide. Also disclosed is a prodrug of the formula: where A is sulfur or selenium, R′ is derived from a sugar and R′ has the formula (CHOH)nCH2OH, where n is 1 to 5, or R′ is an alkyl or aryl group, or R′ is ═O, and the R″ groups may be the same or different and may be hydrogen, alkyl, alkoxy, carboxy. Also disclosed is a conjugate of an antioxidant vitamin and a thiolamine or selenolamine.Also disclosed is a prodrug of the formula; where A is sulfur or selenium, and R′ is derived from a sugar and R′ has the formula (CHOH)nCH2OH, where n is 1 to 5, or R′ is also be an alkyl or aryl group, or R′ is ═O, and R‡ is an alkoxy, or an amine group. Also disclosed is a prodrug of the formula: where R is COOH or H, and R′ is derived from a sugar and R′ has the formula (CHOH)nCH2OH,where n is 1 to 5, or R′ is an alkyl or aryl group, or R′ is ═O.
47 3,4-di-O,N-Protected-4-amino-2,4,6-trideoxy-2-fluoro-L-manno-pyranosyl halide and a process for its preparation US282200 1999-03-31 US6075135A 2000-06-13 Tomio Takeuchi; Sumio Umezawa; Tsutomu Tsuchiya; Yasushi Takagi
7-O-(4-Amino-2,4,6-trideoxy-2-fluoro-.alpha.-L-mannopyranosyl)-daunomycinone or -adriamycinone is now synthesized as a daunomycinone or adriamycinone derivative having the general formula ##STR1## wherein R is a hydrogen atom or hydroxyl group. These novel compounds according to this invention exhibit excellent antitumor activities and have a high solubility in water, and hence they are useful as an antitumor agent.
48 Preparation of glucosaminyl muramic acid derivatives US539292 1995-10-04 US5750665A 1998-05-12 Gerald J. Vosika; Fanfeng Ma
The present invention provides a method for the preparation of disaccharides, such as glucosaminyl muramic acids peptides and derivatives. The method includes condensing a protected muramic acid ester with a 1-organothio- or 1-fluoroglucosamine derivative in the presence of a suitable promoter to produce a protected glucosaminyl muramic acid ester. The protected glucosaminyl muramic acid ester may be used to prepare disaccharide peptides, such as N-acetylglucosaminyl-N-acetylmuramyl dipeptides, which have demonstrated immunological activity. Protected muramic acid esters and 1-organothio- or 1-fluoro- glucosamine compounds which may be employed as intermediates in the method are also provided.
49 Substituted liposaccharides useful in the treatment and prevention of endotoxemia US461675 1995-06-05 US5750664A 1998-05-12 William J. Christ; Daniel P. Rossignol; Seiichi Kobayashi; Tsutomu Kawata
Novel substituted liposaccharides useful as in the prophylactic and affirmative treatment of endotoxemia including sepsis, septicemia and various forms of septic shock and methods of using these agents are provided. Also provided are methods of preparing these agents and intermediates useful therein.
50 Process for preparing macrolide derivatives US846446 1986-03-31 US4921947A 1990-05-01 Eddie V. P. Tao; Jeffrey T. Vicenzi
This invention provides an improvement in the process for preparing C-20-amino-substituted derivatives of the macrolide antibiotics of the tylosin type by reductively aminating the C-20 aldehyde group in the parent antibiotic. The improvement comprises using formic acid as the reducing agent. The new process is less expensive and more amenable to scale-up than previously used processes, but is still selective.
51 Treatment of malignant tumors with 2-(.beta.-D-ribofuranosylthiazole-4-carboxamide related compounds US706084 1985-02-27 US4680285A 1987-07-14 Roland K. Robins
The compound 2-.beta.-D-ribofuranosylthiazole-4-carboxamide is used to treat malignant tumors in warm blooded animals. Esters of this compound such as 2-(2,3,5-tri-O-acetyl-.beta.-D-ribofuranosyl)thiazole-4-carboxamide and 2-(5-O-phosphoryl-.beta.-D-ribofuranosyl)thiazole-4-carboxamide are also useful for treating tumors in warm blooded animals.
52 2-.beta.-D-ribofuranosylselenazole-4-carboxamide compounds and methods for their production US612078 1984-07-23 US4594416A 1986-06-10 Roland K. Robins; Prem C. Srivastava
A class of novel 2-.beta.-D-ribofuranosylselenazole-4-carboxamide nucleoside and nucleotide compounds and methods for their production are provided. Compounds of the class typically have pharmacological properties, especially antitumor and antiviral properties, and are well tolerated, being useful, for example, in treating tumors and viral infections in warm blooded animals.
53 Novel antifugal antibiotic substance, process for production of the same, and agricultural and horticultural fungicidal composition containing said substance US272217 1972-07-17 US3956276A 1976-05-11 Toju Hata; Satoshi Omura; Michiko Katagiri; Juichi Awaya; Shimpei Kuyama; Shizuo Higashikawa; Kazuomi Yasui; Haruko Terada
The antifungal antibiotic substance "F-1028" having the following formula, ##EQU1## or an acid salt thereof, a process for the production of the same by fermentation, and a fungicidal composition useful for agricultural and horticultural use.
54 Mannose-Based mRNA Targeted Delivery System and Use Thereof US18329015 2023-06-05 US20230355776A1 2023-11-09 Yong Hu; Miaomiao Zhang
The present invention provides a mannose-based mRNA targeted delivery system and use thereof. The mRNA can encode one or more target polypeptides and contains at least one mannose modification. The technical solution of the present invention modifies the mRNA molecule with a mannose, so that the mRNA can be directly and efficiently coupled with the mannose, and the targeted delivery of the mRNA is realized without the need for a carrier.
55 INHIBITORS OF SODIUM GLUCOSE COTRANSPORTER 1 US15601175 2017-05-22 US20180244708A1 2018-08-30 Kenneth Gordon CARSON; Nicole Cathleen GOODWIN; Bryce Alden HARRISON; David Brent RAWLINS; Eric STROBEL; Brian ZAMBROWICZ
Inhibitors of sodium glucose cotransporter 1 (SGLT1), compositions comprising them, and methods of their use to treat diseases and disorders such as diabetes are disclosed. Particular compounds are of the formula: the various substituents of which are defined herein.
56 Stabilisation of radiopharmaceutical precursors US11721563 2005-11-18 US10000518B2 2018-06-19 Lill Torild Wickstrom; Dirk-Jan in't Veld; Nigel John Osborn; Julian Grigg; Anthony Wilson
The present invention relates to a method for improving stability of non fluoridated sugar derivatives, and in particular glucose derivatives such as 1,3,4,6-tetra-O-acetyl-2-O-trifluoromethanesulfonyl-ß-D-mannopyranose which are used as precursors for production of radiofluoridated sugar derivatives for use in in vivo imaging procedures such as positron emission tomography (PET). The method comprises storing the non fluoridated sugar derivative in an organic solvent. The resultant formulations of the non fluoridated sugar derivative and cassettes for automated synthesis apparatus comprising the same are also claimed.
57 Cell-permeable probes for identification and imaging of sialidases US14422310 2013-08-16 US09914956B2 2018-03-13 Chi-Huey Wong; Jim-Min Fang; Yih-Shyun E. Cheng; Charng-Sheng Tsai
Provided herein are novel irreversible sialidase inhibitors. These compounds can be conjugated with a detectable tagging moiety such as azide-annexed biotin via CuAAC for isolation and identification of sialidases. The provided compounds and the corresponding detectable conjugates are useful for detecting sialidase-containing pathogens and imaging in situ sialidase activities under physiological conditions.
58 Inhibitors of sodium glucose cotransporter 1 US14943505 2015-11-17 US09688710B2 2017-06-27 Kenneth Gordon Carson; Nicole Cathleen Goodwin; Bryce Alden Harrison; David Brent Rawlins; Eric Strobel; Brian Zambrowicz
Inhibitors of sodium glucose cotransporter 1 (SGLT1), compositions comprising them, and methods of their use to treat diseases and disorders such as diabetes are disclosed. Particular compounds are of the formula: the various substituents of which are defined herein.
59 Inhibitors of sodium glucose cotransporter 1 US14082786 2013-11-18 US09200025B2 2015-12-01 Kenneth Gordon Carson; Nicole Cathleen Goodwin; Bryce Alden Harrison; David Brent Rawlins; Eric Strobel; Brian Zambrowicz
Inhibitors of sodium glucose cotransporter 1 (SGLT1), compositions comprising them, and methods of their use to treat diseases and disorders such as diabetes are disclosed. Particular compounds are of the formula: the various substituents of which are defined herein.
60 ELECTROCHEMICAL SYNTHESIS OF CHLORO-CHITOSAN US14374948 2013-02-01 US20150011742A1 2015-01-08 Gary P. Halada; Prashant Kumar Jha
The present disclosure provides methods for producing chitosan derivatives and the derivatives formed by these methods. The processes of the present disclosure utilize electrochemical methods to functionalize and/or modify amine and/or hydroxyl groups present on chitosan, to form new derivatives. In embodiments, a chloro-chitosan derivative may be prepared. The altered cationic affinity of these derivatives make them excellent candidates for biomedical applications, including pharmaceuticals, as well as food applications.
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