CAS: 72909-34-3; 4,5-Dioxo-4,5-Dihydro-1H-Pyrrolo[2,3-F]Quinoline-2,7,9-Tricarboxylic Acid

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专利信息

专利号:US-2021047609-A1
优先权日:2018-01-26
标 题 :Method For Promoting Synthesis Of Sorbitol Dehydrogenase And Coenzyme Pyrroloquinoline Quinone From Gluconobacter Oxydans
发明人：ZHENG YUGUO; KE XIA; LU YANGHUI; HU ZHONGCE; WU YANG
权利人:UNIV ZHEJIANG TECHNOLOGY; ZHEJIANG MED XINCHANG PHARM
摘要:The present invention discloses a method for promoting the fermentation of Gluconobacter oxydans to produce D-sorbitol dehydrogenase and pyrroloquinoline quinone. The method comprises: Gluconobacter oxydans is inoculated to a fermentation culture medium, fermented and cultured under the conditions of 28-32° C. and 150-180 rpm for 6-24 hours, the fermented solution is centrifuged, and wet bacteria are collected, thus acquiring bacteria cells containing D-sorbitol dehydrogenase and pyrroloquinoline quinone. The method promotes the synthesis of coenzyme pQQ and the enzyme activity of per unit volume D-sorbitol dehydrogenase, Gluconobacter oxydans cultured and acquired using the method is biotransformed to synthesize miglitol precursor 6-deoxy-6-amino(N-hydroxyethyl)-α-L-furan sorbose (6NSL), the conversion progress of the product 6NSL is increased by 21-35%, and a biotransformation step cycle is reduced from 48 hours to 36 hours. In addition, under a same substrate concentration (60 g/L), the cumulative concentration of the product 6NSL is increased by 10 g/L or more.

专利号:WO-2024165524-A1
优先权日:2023-02-06
标 题:Production of a saccharide by a cell with reduced synthesis of lactobionic acid
发明人：BEAUPREZ JOERI; DECOENE THOMAS; VERCAUTEREN ANNELIES
权利人:INBIOSE NV
摘要:The present invention is in the technical field of synthetic biology, metabolic engineering and cell cultivation. The invention provides a cell for production of a saccharide wherein synthesis of lactobionic acid in said cell is rendered less functional or is knocked out. The invention further provides use of said cell in a cultivation or incubation. The invention also describes methods for the production of a saccharide using said cell as well as the purification of said saccharide.

专利号:EP-2465936-A1
优先权日:2010-12-20
标题 :Enzymatic synthesis of statins and intermediates thereof
权利人:LEK PHARMACEUTICALS
摘要:The present invention discloses a process for preparing an active pharmaceutical ingredient (API) or intermediates thereof, notably particular step in the synthesis of an intermdiate useful for example in the preparation of statins, by using an enzyme capable of catalyzing oxidation or dehydrogenation. The invention further provides an expression system effectively translating said enzyme. In addition, the invention relates to a specific use of such enzyme for preparing API or intermediate thereof, and in particular for preparing statin or interemediate thereof.

专利号:US-2010152468-A1
优先权日:2008-10-16
标 题 :Process for the synthesis of ramelteon and its intermediates
发明人：KANSAL VINOD KUMAR; MISTRY DHIRENKUMAR N; VASOYA SANJAY L; JADAV ARPAN M; DADHANIYA PRATISH; NALAWADE JITENDRA
权利人:TEVA PHARMA
摘要:The present invention provides processes and intermediates for the synthesis of ramelteon.

专利号:US-10829792-B2
优先权日:2017-03-21
标 题 :Biocatalytic synthesis of strained carbocycles
发明人：CHEN KAI; HUANG XIONGYI; KAN S B JENNIFER
权利人:CALIFORNIA INST OF TECHN
摘要:Provided herein are methods for producing products containing strained carbocycles, such as cyclopropene moieties and/or bicyclobutane moieties. The methods include combining an alkyne and a carbene precursor in the presence of a heme protein, e.g., a cytochrome P450, under conditions sufficient to form the strained carbocycle. Reaction mixtures for producing strained carbocycles are also described, as well as whole-cell catalysts comprising heme proteins and variants thereof for forming cyclopropenes, bicyclobutanes, and related products.

专利号:US-2008305532-A1
优先权日:2005-02-11
标题:Gene For Coenzyme Pqq Synthesis Protein B From Gluconobacter Oxydans
发明人：CHEVREUX BASTIEN; MAYER ANNE F; MOUNCEY NIGEL J; SHINJOH MASAKO
权利人:CHEVREUX BASTIEN; MAYER ANNE F; MOUNCEY NIGEL J; SHINJOH MASAKO
摘要:The present invention relates to a newly identified gene that encodes a protein that is involved in the synthesis of L-ascorbic acid (hereinafter also referred to a Vitamin C). The protein is coenzyme PQQ synthesis protein B. The invention also features polynucleotides comprising the full-length polynucleotide sequences of the novel genes and fragments thereof, the novel polypeptides encoded by the polynucleotides and fragments thereof, as well as their functional equivalents. The present invention also relates to the use of said polynucleotides and polypeptides as biotechnological tools in the production of Vitamin C from microorganisms, whereby a modification of said polynucleotides and/or encoded polypeptides has a direct or indirect impact on yield, production, and/or efficiency of production of the fermentation product in said microorganism. Also included are methods/processes of using the polynucleotides and modified polynucleotide sequences to transform host microorganisms. The invention also relates to genetically engineered microorganisms and their use for the direct production of Vitamin C.