CAS: 2280-27-5; (S)-2-Amino-3-Hydroxy-3-Methylbutanoic Acid

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📜D-青霉胺置于hydroxide,氧气体系中,用 水 用作溶剂,化学反应生成(S)-(+)-2-氨基-3-羟基-3-甲基丁酸
参考文献:γ-Radiolysis Of Disulfides In Aqueous Solution. Ii. D-Penicillamine Disulfide
标题:γ-Radiolysis Of Disulfides In Aqueous Solution. Ii. D-Penicillamine Disulfide
摘要:D-青霉胺二硫化物(pensspen)在3x10−4 M水溶液中的γ-辐解在通气和脱气条件下进行了研究.对以下产物确定了g值:青霉胺亚砜酸(penso2H),青霉胺酸(penso3H),β-羟基缬氨酸(penoh),2-氨基-3-甲基丁-3-烯酸(hooc•ch(Nh2)•c(Ch3)=ch2),青霉胺(pensh),青霉胺二硫化物-S-一氧化物(pens(O)Spen),缬氨酸(penh),青霉胺三硫化物(penssspen)和氨.在通气溶液中penso3H的低产率表明pensoh没有与氧气或o2−反应.高产率得到的三硫化物主要来自以下反应:[formula: See Text].用•oh自由基(ticl3/h2O2)产生的化学实验和存在半胱氨酸或青霉胺的辐照用于确认这些反应.这些以及其他反应经过了自由基清除剂的测试;甲酸盐和单氯乙酸盐以及一氧化氮.
Doi:10.1139/v69-162

专利信息

专利号:US-4486600-A
优先权日:1982-11-19
标题 :Process for the production of β-hydroxy-α-aminocarboxylic acids
发明人：KLEEMANN AXEL; LEHMANN BERND; DELLER KLAUS
权利人:DEGUSSA
摘要:β-hydroxy-α-aminocarboxylic acids of the formula: ##STR1## where R 1 and R 2 are hydrogen or an alkyl group having 1 to 10 carbon atoms are produced by hydrogenating the correspondingly substituted cyanohydrin in a water containing medium first in the presence of a hydrogenation catalyst and an acid at a temperature between -10° and +40° C. and a hydrogen pressure of less than 10 bar, until per mole of cyanohydrogen employed one mole of hydrogen is taken up and then employing the solution obtained as starting material for a Strecker or Bucherer synthesis of an amino acid.

专利号:US-7195712-B2
优先权日:2002-02-28
标 题 :Wastewater treatment apparatus and method for removing nitrogen and phosphorus
发明人：PARK JONG BOK; LEE JAE JIN; JEONG YONG DAE; AOH GYUNG HAE
权利人:SAMSUNG ENG CO LTD
摘要:Provided is a wastewater treatment apparatus for removing nitrogen and phosphorus having an anaerobic tank, an anoxic tank, an aerobic tank and a clarifier, wherein the aerobic tank includes has a baffle installed at one side thereof to form a dissolved oxygen reducing zone for reducing the concentration of dissolved oxygen contained in internally recycled wastewater returned from a dissolved oxygen reducing zone while increasing the concentration of dissolved oxygen contained in treated effluent supplied from a part other than the dissolved oxygen reducing zone of the aerobic tank to a clarifier in a subsequent stage. Since organic matter present in wastewater is effectively used, the efficiency of removing nitrogen and phosphorus can be increased and the amounts of oxygen required throughout the treatment process and organic matter required for denitrification can be reduced. Also, synthesis of cells of microorganisms is suppressed. Therefore, the repair and maintenance costs can be reduced.

专利号:US-11230553-B2
优先权日:2016-05-09
标 题:Nannocystin process and products
发明人：WANG ZHANG; HUANG JUN
权利人:UNIV NEW YORK STATE RES FOUND
摘要:Described herein is a process for the total synthesis of macrolactones and macrolactams of formula Iincluding E- and Z-configuration thereof, in particular, nannocystins.

专利号:DE-3812158-A1
优先权日:1988-04-12
标 题 :METHOD FOR SYNTHESIS OF ORGANIC COMPOUNDS

专利号:US-2007243581-A1
优先权日:2004-04-21
标题:Process for Producing Dipeptides
发明人：HASHIMOTO SHIN-ICHI; TABATA KAZUHIKO; NOGUCHI AYAKO; ADACHI YUGO
权利人:HASHIMOTO SHIN-ICHI; TABATA KAZUHIKO; NOGUCHI AYAKO; ADACHI YUGO
摘要:The present invention provides: a protein having dipeptide-synthesizing activity or a protein for dipeptide synthesis; DNA encoding the protein having dipeptide-synthesizing activity or the protein for dipeptide synthesis; a recombinant DNA comprising the DNA; a transformant carrying the recombinant DNA; a process for producing the protein having dipeptide-synthesizing activity; an enzymatic process for producing a dipeptide using the protein having dipeptide-synthesizing activity or the protein for dipeptide synthesis; and a process for producing a dipeptide using, as an enzyme source, a culture of a microorganism or a transformant having the ability to produce the protein having dipeptide-synthesizing activity or the protein for dipeptide synthesis, or the like.