CAS: 156-39-8; 3-(4-Hydroxyphenyl)-2-Oxopropanoic Acid

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L-酪氨酸置于r301K Mutant Of Escherichia Coli Thiamine Biosynthesis Enzyme,S-腺苷-L-蛋氨酸体系中,化学反应生成4-羟苯基丙酮酸
参考文献:自由基sam依赖的胺脱氢反应的机理研究
标题:自由基sam依赖的胺脱氢反应的机理研究
摘要:自由基sam酶nosl催化l-Trp转化为3-甲基-2-吲哚酸,该反应是由5'-脱氧腺苷基(dado)自由基介导的l-Trp氨基夺氢而引发的. .
Doi:10.1039/c6Cc05661J

专利信息

专利号:WO-2018157942-A1
优先权日:2017-03-03
标题:Cell-free synthesis of isotopic labelled proteins from amino-acids precursors
发明人：CRUBLET ELODIE; IMBERT LIONEL; GANS PIERRE; BOISBOUVIER JÉRÔME; KERFAH RIME
权利人:NMR BIO; COMMISSARIAT ENERGIE ATOMIQUE; CENTRE NAT RECH SCIENT; UNIV GRENOBLE ALPES
摘要:Process of cell-free synthesis of a target protein, comprising at least the following steps: a. providing at least one precursor of an amino-acid, a cell-free extract comprising means for transforming said precursor of an amino-acid into the corresponding amino-acid, at least one tRNA for integrating said amino-acid into the corresponding target protein, in which the at least one precursor of amino-acid is an alpha-keto acid, with the proviso that 2-ketobutyric acid is excluded, b. mixing the compounds provided in step a) to obtain a mixture, c. adding to said mixture obtained in step b) a DNA or a mRNA coding to said target protein in order to produce said target protein.

专利号:WO-2023198025-A1
优先权日:2022-04-11
标题:Synthesis method and synthesis device for organic nitrogen-containing compound
发明人：LI GUANGQIN; Liao Peisen; XIAN JIAHUI; LI SUISHENG; ZHANG YAWEI
权利人:UNIV SUN YAT SEN
摘要:The present invention relates to the field of organic synthesis, specifically to a synthesis method and synthesis device for an organic nitrogen-containing compound. Provided in the present invention is a synthesis method for an organic nitrogen-containing compound. In the method provided in the present invention, a porous carbon material is used as a catalyst, organic nitrogen-containing compounds such as an oxime, an amine, a nitrile and an amino acid are synthesized by means of an electro-catalysis method, byproducts are unlikely to generate, and the method is safe and environmentally friendly. Experiments show that organic nitrogen-containing compounds such as an amino acid, an oxime, an amine and a nitrile are successfully synthesized by using the method of the present invention, and the method has good Faraday efficiency and yield. In the present application, the synthesis of the above organic nitrogen-containing compounds can be realized by using nitrogen oxide waste gas or waste water as a raw material; and by converting the nitrogen oxide waste gas or waste water, the utilization of waste is realized, and the benefits are maximized. Further provided in the present invention is a synthesis device for an organic nitrogen-containing compound, which device is used for solving the defects of high energy consumption, long consumption time, and complex product separation and purification of existing synthesis methods.

专利号:EP-1548006-B1
优先权日:2003-12-12
标题 :Synthesis of tetraazapentamethine derivatives, keratin fibers dyeing process which uses such synthesis
发明人：PEREIRA RUI; BURGAUD HERVE
权利人:OREAL
摘要:Producing tetraazapentamethine compounds (I) comprising reacting an azine compound with an oxidizing agent, is new. Producing tetraazapentamethine compounds of formula (I) comprises reacting an azine compound of formula (VI) or (VII) with an oxidizing agent; [Image] [Image] W1a cationic heteroaromatic group of formula (II) or (III); W2a heteroaromatic group of formula (IV) or (V); Z14Z7 or Z1; Z15Z8 or Z2; Z16Z13 or Z0; R25R5 or R1; Z17Z9 or Z3; Z18Z10 or Z4; Z19Z11 or Z5; Z20Z12 or Z6; R26R8 or R3; R27R7 or R4; R28, R29H, 1-6C alkyl or 1-6C alkoxy, but not both H; Z0CR2, N or NR21; Z1O, S or NR9; Z2N or CR10; Z3N or CR11; Z4N or CR12; Z5N or CR13; Z5N or CR13; Z6N or CR14; Z7O, S or NR15; Z8N or CR16; Z9N or CR17; Z10N or CR18; Z11N or CR19; Z12N or CR20; Z13CR6, N or NR22; R2, R6, R10, R16H; 1-4C alkyl substituted with 0-3 of OH, 1-2C alkoxy, 2-4C (poly)hydroxyalkoxy, NH2, 1-2C (di)alkylamino, COOH or SO3H; phenyl substituted with 0-2 of OH, 1-2C alkoxy, 2-4C (poly)hydroxyalkoxy, NH2, 1-2C (di)alkylamino; COOH; sulfonylamino; R1, R4, R5, R7, R9, R15, R21, R221-6C alkyl substituted with 0-3 of OH, 1-2C alkoxy, 2-4C (poly)hydroxyalkoxy, NH2, 1-2C (di)alkylamino, COOH or SO3H; R0, R3, R8, R11-R14, R17-R20H; 1-6C linear or branched hydrocarbyl with 0-3 unsaturations, optionally substituted with 1-3 of OH, 1-2C alkoxy, 2-4C (poly)hydroxyalkoxy, NH2, 1-2C (di)alkylamino, COOH, SO3H, sulfonylamino, 2-4C (poly)hydroxyalkylamino or halo and optionally interrupted by O, N, S or SO2; phenyl optionally substituted with 1-3 of OH, 1-2C alkoxy, 2-4C (poly)hydroxyalkoxy, NH2, 1-2C (di)alkylamino, COOH, SO3H, sulfonylamino, 2-4C (poly)hydroxyalkylamino or halo; pyrazolyl, pyrrolyl, imidazolyl, thiazolyl, oxazolyl, triazolyl, pyridyl, pyrimidinyl, triazinyl, pyrazinyl or pyridazinyl; X : an anion; R2+R10, R11+R12, R6+R16, R17+R18 can form a 5-6C aromatic ring substituted with 0-2 of OH, NH2, 1-2C (di)alkylamino, 1-2C alkoxy, 2-4C (poly)hydroxyalkylamino. An independent claim is also included for dyeing keratinic fibers by applying (VI) or (VII) onto the wet or dry fibers in the presence of an oxidizing agent. [Image].

专利号:US-7288120-B2
优先权日:2003-12-12
标题 :Synthesis of tetraazapentamethine compounds, and processes for dyeing keratin fibers using this synthesis
发明人：PEREIRA RUI; BURGAUD HERVE
权利人:OREAL
摘要:The present disclosure relates to processes for synthesizing tetraazapentamethine compounds that comprise reacting at least one compound of azine type with at least one oxidizing agent. The disclosure also relates to processes for dyeing keratin fibers, for example human keratin fibers, that comprise using such synthetic processes.

专利号:US-2024026314-A1
优先权日:2020-11-25
标题 :Polypeptides for use in the synthesis of bioactive phenolic compounds
发明人：ROTHSTEIN STEVEN; AKHTAR TARIQ; CASARETTO JOSE; PERRIN COLBY; VAN GELDER KRISTEN
权利人:ROTHSTEIN STEVEN; AKHTAR TARIQ; CASARETTO JOSE; PERRIN COLBY; VAN GELDER KRISTEN
摘要:Described herein is a polypeptide encoding a prenyltransferase for prenylating a polyphenol and a polypeptide encoding an O-methyltransferase for methylating a polyphenol. For example, the polypeptide comprises or consists of the sequence of SEQ ID NO: 1, 2, 3, 4, 5, and/or 6, and/or a polypeptide listed in Table 1, and/or SEQ ID NO: 7-30, or a variant thereof having at least 80% sequence identity to SEQ ID NO: 1, 2, 3, 4, 5, and/or 6, and/or the polypeptide listed in Table 1, and/or SEQ ID NO: 7-30, or a fragment of the polypeptide or the variant thereof.

专利号:US-12234495-B2
优先权日:2021-04-06
标 题:Synthesis of beta-hydroxyisovalerate and methods of use
发明人：VEMURI GOUTHAM; LINDSAY CHRISTOPHER; ROBERG-PEREZ KEVIN; SNOW CHRISTOPHER D; CAMERON ELIZABETH A
权利人:SASYA INC
摘要:The biological production of beta-hydroxyisovalerate (βHIV) using at least one non-natural enzyme. The non-natural enzyme for the biologically-derived βHIV provides more beta-hydroxyisovalerate synthase activity than the wild-type parent. The non-natural enzyme having one or more modifications of substrate-specificity positions. The non-natural enzyme can be expressed in a microorganism, such as a yeast or bacteria, wherein the microorganism comprises an active βHIV metabolic pathway for the production of βHIV. Alternatively, the non-natural enzyme can be a βHIV synthase used to produce βHIV in a cell-free environment. The biological derivation of βHIV eliminates toxic by-products and impurities that result from the chemical production of βHIV, such that βHIV produced by a non-natural enzyme prior to any isolation or purification process has not been in substantial contact with any halogen-containing component.