Method for crystallizing tryptophan
    1.
    发明授权
    Method for crystallizing tryptophan 有权
    结晶色氨酸的方法

    公开(公告)号:US6284897B2

    公开(公告)日:2001-09-04

    申请号:US75619401

    申请日:2001-01-09

    申请人: AJINOMOTO KK

    IPC分类号: C07B63/00 C07D209/20

    CPC分类号: C07D209/20

    摘要: A method for the crystallization of tryptophan, comprising storing a tryptophan solution at a pH of 8 to 13 and at a temperature of room temperature to 100° C. for 0.5 hour to 1 week and then, followed by crystallization.

    摘要翻译: 一种色氨酸结晶的方法,包括将色氨酸溶液在pH8〜13和室温至100℃的温度下储存0.5小时至1周,然后结晶。

    Method of producing L-phenylalanine by fermentation
    3.
    发明授权
    Method of producing L-phenylalanine by fermentation 失效
    通过发酵生产L-苯丙氨酸的方法

    公开(公告)号:US3909353A

    公开(公告)日:1975-09-30

    申请号:US48980574

    申请日:1974-07-18

    申请人: AJINOMOTO KK

    IPC分类号: C12P13/22 C12D13/06

    CPC分类号: C12P13/222 Y10S435/84

    摘要: Tyrosine-requiring mutant strains of Brevibacterium lactofermentum and Brevibacterium flavum which are capable of vigorous growth on culture media containing enough of a tryptophan analog to suppress growth of the parent strain and also capable of vigorous growth on media containing enough phenylalanine analog to suppress growth of the parent strain, produce more phenylalanine by aerobic fermentation of generally conventional aqueous media than the best phenylalanine-producing related microorganisms available heretofore.

    摘要翻译: 能够在含有足够的色氨酸类似物的培养基上剧烈生长的乳酸发酵短杆菌和黄色短杆菌的酪氨酸需要突变菌株,以抑制亲本菌株的生长,并且还能够在含有足够的苯丙氨酸类似物的培养基上剧烈生长以抑制 亲本菌株,通过常规水性介质的需氧发酵产生更多的苯丙氨酸,而不是迄今为止可获得的最佳的产生苯丙氨酸的相关微生物。

    Mono-alanine maleate
    4.
    发明授权
    Mono-alanine maleate 失效
    马来酸单丙酸丙酯

    公开(公告)号:US3897484A

    公开(公告)日:1975-07-29

    申请号:US23978672

    申请日:1972-03-30

    申请人: AJINOMOTO KK

    IPC分类号: C07C101/08

    CPC分类号: C07C227/08

    摘要: DL-Alanine is optically resolved by making an aqueous solution of DL-alanine and of maleic acid supersaturated with respect to mono-alanine maleate, and seeding the supersaturated solution with crystals of an optically active enantiomorph of mono-alanine maleate. The grown crystals are recovered and decomposed to separate the optically active alanine moiety from the maleic acid moiety which may be recycled.

    摘要翻译: DL-丙氨酸通过使相对于单丙氨酸马来酸盐过量的DL-丙氨酸和马来酸的水溶液进行光学拆分,并用马来酸单丙-1-酸的光学活性对映体的晶体接种过饱和溶液。 将生长的晶体回收并分解,以将可旋光的丙氨酸部分与可回收的马来酸部分分离。

    Method of solubilizing polysaccharides
    6.
    发明授权
    Method of solubilizing polysaccharides 失效
    增溶多糖的方法

    公开(公告)号:US3883505A

    公开(公告)日:1975-05-13

    申请号:US47118974

    申请日:1974-05-20

    申请人: AJINOMOTO KK

    发明人: HAMURO JUNJI

    摘要: Polysaccharides soluble in water are obtained by contacting water-insoluble, naturally occurring polysaccharides with strong, hot, aqueous solutions of urea, thiourea, guanidine, and their Nlower-alkyl derivatives. No change in primary chemical structure nor shortening of polymer chains occurs under mild processing conditions. Polysaccharides may be separated from other constituents of natural raw materials in soluble form by this method.

    摘要翻译: 可溶于水的多糖通过将不溶于水的天然存在的多糖与强力,热的尿素,硫脲,胍及其N-低级 - 烷基衍生物的水溶液接触而获得。 在温和的加工条件下,不会发生主要化学结构的变化和聚合物链的缩短。 这种方法可以将多糖与可溶形式的天然原料的其他组分分离。

    Method of preparing hydrohalides of aspartic anhydride
    8.
    发明授权
    Method of preparing hydrohalides of aspartic anhydride 失效
    制备天冬氨酸酐的卤化氢的方法

    公开(公告)号:US3872110A

    公开(公告)日:1975-03-18

    申请号:US24678172

    申请日:1972-04-24

    申请人: AJINOMOTO KK

    IPC分类号: C07C55/02 C07D307/66

    CPC分类号: C07C59/245

    摘要: The hydrochloride and hydrobromide of aspartic anhydride are obtained in high yields when the known reaction between one mole of aspartic acid and suitable halide dehydrating agents, such as phosphorus chlorides, is carried out in the presence of at least one mole of a lower alkanoic acid which provides at least a portion of the liquid reaction medium. The yield is further improved by adding the anhydride of the alkanoic acid to the reaction mixture.

    摘要翻译: 当1摩尔天冬氨酸和合适的卤化物脱水剂如氯化磷之间的已知反应在至少1摩尔的低级链烷酸存在下进行时,天然碱酐的盐酸盐和氢溴酸盐以高产率获得, 提供至少一部分液体反应介质。 通过向反应混合物中加入链烷酸的酸酐进一步提高产率。

    Method of producing active amino acid esters
    9.
    发明授权
    Method of producing active amino acid esters 失效
    生产活性氨基酸酯的方法

    公开(公告)号:US3872099A

    公开(公告)日:1975-03-18

    申请号:US31792172

    申请日:1972-12-26

    申请人: AJINOMOTO KK

    摘要: Amino acids having masked amino groups react with amino acids having masked carboxyl groups to form peptide derivatives in good yields if the reaction medium contains an isonitrile. Isonitriles also are effective in causing condensation of amino acids having masked amino groups with compounds having active hydroxyl groups to the corresponding amino acid esters. The yields of the firstmentioned reaction are enhanced if the reaction mixture additionally contains one of the compounds having active hydroxyl groups. Both the peptide derivatives and the amino acid esters of the compounds having active hydroxyl groups are useful for peptide synthesis. The term ''''amino acid'''' herein embraces also oligopeptides having free amino and carboxyl groups unless specifically stated otherwise.

    摘要翻译: 如果反应介质含有异腈,具有掩蔽的氨基的氨基酸与具有掩蔽的羧基的氨基酸反应以以良好的产率形成肽衍生物。 异腈还有效地使具有掩蔽氨基的氨基酸与具有活性羟基的化合物缩合成相应的氨基酸酯。 如果反应混合物另外含有具有活性羟基的化合物之一,则提高反应​​的产率。 肽衍生物和具有活性羟基的化合物的氨基酸酯都可用于肽合成。 术语“氨基酸”也包括具有游离氨基和羧基的寡肽,除非另有特别说明。

    Nucleoside-5{40 -diphosphate ethanolamines and method of producing the same
    10.
    发明授权
    Nucleoside-5{40 -diphosphate ethanolamines and method of producing the same 失效
    核苷-5 {40-二磷酸乙醇胺及其制备方法

    公开(公告)号:US3872083A

    公开(公告)日:1975-03-18

    申请号:US33457473

    申请日:1973-02-22

    申请人: AJINOMOTO KK

    CPC分类号: C07H19/10 C07H1/02 C07H19/20

    摘要: WHEREIN R is the nucleoside moiety of the starting material, and R1, R2, R3 are as above. Some of the compounds are known therapeutic agents, and those which are new have corresponding physiological properties.

    WHEREIN R1, R2, R3 are hydrogen or lower alkyl having up to four carbon atoms, and salts of such phosphoryl ethanolamines in the presence of S-triazine derivatives, particularly cyanuric chloride, as condensation agents to form nucleoside-5''diphosphate ethanolamines of the formula

    Purine and pyrimidine-5''-monophosphates, AICAR, N-succinylAICAR, and their salts react with phosphoryl ethanolamines of the formula

    摘要翻译: 嘌呤和嘧啶-5'-单磷酸酯,AICAR,N-琥珀酰-AICAR及其盐与下式的磷酰乙醇胺反应:式中R 1,R 2,R 3为氢或具有至多4个碳原子的低级烷基, 在S-三嗪衍生物(特别是氰尿酰氯)存在下,乙醇胺作为缩合剂形成式WHEREIN R是起始物质的核苷部分的核苷-5'-二磷酸乙醇胺,R1,R2,R3如上。 一些化合物是已知的治疗剂,而新的化合物具有相应的生理特性。