CAS: 107-35-7; 2-Aminoethanesulfonic Acid

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7347-25-3 107-68-6 4316-74-9

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巯基乙胺置于2,2,6,6-四甲基哌啶体系中,用 水 用作溶剂,140.0 °C,400.01 Kpa 条件下,反应 0.17H,以98.4%的收率获得牛磺酸
参考文献:一种牛磺酸合成方法
标题:一种牛磺酸合成方法
摘要:本发明提供一种牛磺酸合成方法,解决传统牛磺酸合成工艺中存在的加成反应中副产积累,氨解反应中高温高压和酸化中的强酸强碱等危险且苛刻的工艺难题.包括如下步骤:1)将硫磺溶液和乙烯接触进行环化反应,得到环硫乙烷;优选的,所述硫磺溶液为硫磺溶于二硫化碳的溶液;2)所述环硫乙烷与氨气或液氨接触进行加成反应,得到氨基硫醇;3)所述氨基硫醇在催化剂存在下进行氧化反应得到牛磺酸粗品.

专利信息

专利号:US-7344863-B2
优先权日:1998-03-13
标题:Methods for producing polypeptides through enhanced synthesis of encoding nucleic acid molecules
发明人：LI WU-BO; JESSEE JOEL A; SCHUSTER DAVID; XIA JIULIN; GEBEYEHU GULILAT
权利人:INVITROGEN CORP
摘要:The present invention is directed to compositions and methods for enhancing synthesis of nucleic acid molecules, particularly GC-rich nucleic acid molecules. Specifically, the invention provides compositions comprising one or more nitrogen-containing organic compounds having a formula selected from the group consisting of formula I and formula II (or salts or derivatives thereof), preferably 4-methylmorpholine N-oxide or betaine (carboxymethyltrimethylammonium), and further comprising one or more compounds selected from the group consisting of proline and an N-alkylimidazole compound, and more preferably proline, 1-methylimidazole or 4-methylimidazole. The invention further relates to methods for enhanced, high-fidelity synthesis of nucleic acid molecules, including via amplification (particularly PCR), reverse transcription, and sequencing methods. The invention also relates to nucleic acid molecules synthesized by these methods, to fragments or derivatives thereof, and to vectors and host cells comprising such nucleic acid molecules, fragments, or derivatives. The invention also relates to kits for synthesizing, amplifying, reverse transcribing or sequencing nucleic acid molecules comprising one or more of the compositions of the invention.

专利号:US-6133018-A
优先权日:1997-06-02
标 题 :Enzymatic synthesis of chiral amines using -2-amino propane as amine donor
发明人：WU WEI; BHATIA MOHIT B; LEWIS CRAIG M; LANG WEI; WANG ALICE L; MATCHAM GEORGE W
权利人:CELGRO
摘要:2-Aminopropane is used as the amine donor in the stereoselective synthesis of a chiral amine from a ketone with a transaminase. In a typical embodiment, (S)-1-methoxy-2-aminopropane is prepared by bringing methoxyacetone into contact with a transaminase in the presence of 2-aminopropane as an amine donor until a substantial amount of methoxyacetone is converted to (S)-1-methoxy-2-aminopropane and 2-aminopropane is converted to acetone. In a second embodiment, L-alanine is prepared by bringing pyruvic acid into contact with a transaminase in the presence of 2-aminopropane as an amine donor.

专利号:WO-9507882-A1
优先权日:1993-09-14
标 题:Synthesis of amido acids from carboxylic acid esters and amino acid salts
发明人：HEINZMAN STEPHEN WAYNE; DUPONT JEFFREY SCOTT
权利人:PROCTER & GAMBLE
摘要:Chemical synthesis of amido acids, and their conversion to amido acid phenyl ester sulfonates for use as bleach activators, starting from carboxylic acid esters and amino acid salts.

专利号:EP-1255452-B2
优先权日:2000-02-04
标题 :A method for maintaining or improving the synthesis of mucins
发明人：BALLEVRE OLIVIER; FINOT PAUL-ANDRE; BREUILLE DENIS
权利人:NESTLE SA
摘要:Methods for maintaining, improving or increasing the synthesis of mucins by administering a nutritional composition or supplement that contains a therapeutically effective amount of threonine are provided. The present invention further provides methods for treating a variety of disease states characterized by alterations to the mucin levels, such as, intestinal inflammatory and bacterial infections or other like disease states.

专利号:US-5405949-A
优先权日:1993-03-29
标题 :Process for the synthesis of glycosaminoglycans with heparin or heparan structure modified in position 2 of the α-L-iduronic-2-O-sulfate acid
发明人：UNGARELLI FABRIZIO; PIANI SILVANO
权利人:ALFA WASSERMANN SPA
摘要:A process for the synthesis of glycosaminoglycans with heparin or heparan structure modified in position 2 of the α-L-iduronic-2-O-sulfate acid in which the sulfate group is, entirely or in part, substituted with a nucleophilic group, is described. The process is carried out by treating glycosaminoglycans having heparin or heparan structure with a nucleophilic reagent in alkaline solution.

专利号:US-5410039-A
优先权日:1993-03-29
标题 :Process for the synthesis of glycosaminoglycans containing α-L-galacturonic acid substituted with nucleophilic groups in position 3
发明人：UNGARELLI FABRIZIO; PIANI SILVANO
权利人:ALFA WASSERMANN SPA
摘要:A process for the synthesis of glycosaminoglycans in which one of the α-L-iduronic-2-O-sulfate acid saccharide units, which is characteristic of glycosaminoglycans with heparin or heparan structure, has undergone a structural modification, entirely or in part, with transformation into α-L-galacturonic acid substituted in position 3 with nucleophilic groups, is described. The process is carried out by treating glycosaminoglycans having heparin or heparan structure with a nucleophilic reagent in alkaline solution.