Phosphoric acid-amino acid-polyvalent metal composite salt and ruminant
feed additive composition
    12.
    发明授权
    Phosphoric acid-amino acid-polyvalent metal composite salt and ruminant feed additive composition 失效
    磷酸 - 氨基酸 - 多价金属复合盐和反刍动物饲料添加剂组成

    公开(公告)号:US5763657A

    公开(公告)日:1998-06-09

    申请号:US894703

    申请日:1997-08-28

    摘要: The present specification discloses a ruminant feed additive composition which contains as an active ingredient a phosphoric acid-amino acid-polyvalent metal composite salt (final composite salt) which is insoluble in neutral or alkaline water and is soluble in acidic water and which can be obtained by treating a composite salt composed of a basic amino acid, magnesium and phosphoric acid with a salt of a divalent or trivalent (polyvalent) metal other than magnesium, or by treating the above-mentioned composite salt with the polyvalent metal salt and a condensed phosphoric acid component (alone) or the condensed phosphoric acid component and a phosphoric acid component (in combination), this composition taking the form of a powder or granules. The above-mentioned final composite salt can exhibit the excellent stability to neutral or slightly acidic water, namely, the low solubility therein in comparison with the intermediate composite salt, and it can have both the excellent insolubility of the basic amino acid in a rumen of a ruminant and the excellent elution thereof in an abomasum and lower digestive organs.

    摘要翻译: PCT No.PCT / JP96 / 03420 Sec。 371日期1997年8月28日 102(e)日期1997年8月28日PCT 1996年11月21日PCT公布。 第WO97 / 24314号公报 日本1997年7月10日本说明书公开了一种反刍动物饲料添加剂组合物,其含有不溶于中性或碱性水并且可溶于酸性水的磷酸 - 氨基酸 - 多价金属复合盐(最终复合盐)作为活性成分 并且可以通过用碱性氨基酸,镁和磷酸组成的复合盐与除了镁以外的二价或三价(多价)金属的盐处理或通过用多价金属处理上述复合盐来获得 盐和缩合磷酸组分(单独)或缩合磷酸组分和磷酸组分(组合),该组合物为粉末或颗粒形式。 上述最终的复合盐可以显示出对中性或微酸性水的优异的稳定性,即与中间复合盐相比,其溶解度低,并且可以具有优异的碱性氨基酸在瘤胃的不溶性 反刍动物和在皱胃和下消化器官中的优异洗脱。

    Aspartyldipeptide derivatives and sweetener compositions containing the
same
    13.
    发明授权
    Aspartyldipeptide derivatives and sweetener compositions containing the same 失效
    天冬氨酰二肽衍生物和含有它们的甜味剂组合物

    公开(公告)号:US5723165A

    公开(公告)日:1998-03-03

    申请号:US500405

    申请日:1995-07-10

    IPC分类号: A23L27/30 C07K5/072 C07K5/075

    CPC分类号: C07K5/06113 Y10S530/801

    摘要: Aspartyldipeptide compounds of the formula (I) L-Asp-X-NH-C*R.sub.1 R.sub.2 (I) where R.sub.1 is alkyl or alkoxymethyl, R.sub.2 is phenyl, benzyl, cyclohexyl or cyclohexylmethyl, C* has an (S) configuration when R.sub.1 is alkyl and an (R) configuration when R.sub.1 is alkoxymethyl and X is a residue of a D-.alpha.-amino acid, a DL-.alpha.-amino acid or a residue of a cyclic or acyclic .alpha.,.alpha.-diallylamino acid and the bond between L-Asp and X is an .alpha.-bond; and their use as active ingredients in sweetener compositions.

    摘要翻译: 式(I)L-Asp-X-NH-C * R1R2(I)的天冬氨酰二肽化合物,其中R 1是烷基或烷氧基甲基,R 2是苯基,苄基,环己基或环己基甲基,C *具有(S) 烷基和(R)构型,当R 1为烷氧基甲基且X为D-α-氨基酸,DL-α-氨基酸或环状或非环状α,α-二烯丙基氨基酸的残基时, L-Asp和X是α键; 以及它们作为甜味剂组合物中的活性成分的用途。

    Process for the production of an
N-protected-L-.alpha.-aspartyl-L-phenylalanine
    16.
    发明授权
    Process for the production of an N-protected-L-.alpha.-aspartyl-L-phenylalanine 失效
    用于生产N-保护的-L-α-天门冬酰基-L-苯丙氨酸的方法

    公开(公告)号:US4740616A

    公开(公告)日:1988-04-26

    申请号:US883354

    申请日:1986-07-01

    IPC分类号: C07K5/075 C07C101/20

    CPC分类号: C07K5/0613 Y10S530/801

    摘要: A process is described for the synthesis of N-protected-L-.alpha.-aspartyl-L-phenylalanine by both (a) the reaction of an N-protected-L-aspartic anhydride and a R.sub.1 -L-phenylalanine, and (b) the reaction of an N-protected-L-aspartic anhydride and L-phenylalanine in an aqueous medium in the presence of R.sub.2, where R.sub.1 may be an alkali metal salt, alkaline earth metal salt, ammonium salt or organic amine salt, and R.sub.2 may be an ammonium salt or an alkali or alkaline earth metal salt of an inorganic or organic acid.

    摘要翻译: 描述了通过(a)N-保护的L-天冬氨酸酐和R1-L-苯丙氨酸的反应合成N-保护的-L-天冬酰胺-L-苯丙氨酸的方法,和(b) 在R2的存在下,N-保护的L-天冬氨酸酐和L-苯丙氨酸在水性介质中的反应,其中R1可以是碱金属盐,碱土金属盐,铵盐或有机胺盐,R2可以 是无机或有机酸的铵盐或碱金属或碱土金属盐。

    Process for producing N-protected-.alpha.-L-aspartyl-L-phenylalanine
methyl ester
    17.
    发明授权
    Process for producing N-protected-.alpha.-L-aspartyl-L-phenylalanine methyl ester 失效
    N-保护-α-L-天冬氨酰-L-苯丙氨酸甲酯的制备方法

    公开(公告)号:US4680403A

    公开(公告)日:1987-07-14

    申请号:US806811

    申请日:1985-12-10

    CPC分类号: C07K5/0613

    摘要: The invention relates to a process for producing N-protected-.alpha.L-aspartyl-L-phenylalanine methyl ester, which comprises esterifying L-phenylalanine with methanol in the presence of a strong acid catalyst, adding, to the resulting solution, an aqueous alkaline solution to neutralize the acid catalyst and a water-immiscible organic solvent to extract the free L-phenylalanine methyl ester thus formed, collecting the organic layer, and reacting the L-phenylalanine methyl ester dissolved in said collected organic layer with N-protected-L-aspartic anhydride.

    摘要翻译: 本发明涉及一种生产N-保护-α-天冬氨酰基-L-苯丙氨酸甲酯的方法,该方法包括在强酸催化剂存在下用甲醇将L-苯丙氨酸酯化,向所得溶液中加入碱性水溶液 用于中和酸催化剂和与水不混溶的有机溶剂以提取如此形成的游离L-苯丙氨酸甲酯的溶液,收集有机层,并将溶解在所述收集的有机层中的L-苯丙氨酸甲酯与N-保护的L - 天冬氨酸酐。

    Method of preparing methyl ester and its hydrochloride
    18.
    发明授权
    Method of preparing methyl ester and its hydrochloride 失效
    制备甲酯及其盐酸盐的方法

    公开(公告)号:US4618695A

    公开(公告)日:1986-10-21

    申请号:US611548

    申请日:1984-05-17

    IPC分类号: C07K5/075 C07C101/02

    CPC分类号: C07K5/0613

    摘要: A method of preparing .alpha.-L-phenylalanine methyl ester and its hydrochloride, which comprises dissolving .alpha.-L-aspartyl-L-phenylalanine .beta.-methyl ester in a methanol/hydrochloric acid mixture solvent which contains, when hydrochloric acid is expressed in terms of concentrated hydrochloric acid and water, 0 to 20% by volume of methanol, 8 to 55% by volume of concentrated hydrochloric acid and water (balance) in a concentration from 0.01 mol/dl to 0.3 mol/dl; holding the solution at 0.degree. to 60.degree. C. to effect intramolecular ester exchange reaction and crystallize out the formed .alpha.-L-aspartyl-L-phenylalanine methyl ester as its hydrochloride; isolating the hydrochloride; and obtaining, when required, the free ester by neutralization with an alkali, is disclosed.

    摘要翻译: 一种制备α-L-苯丙氨酸甲酯及其盐酸盐的方法,其包括将α--L-天冬氨酰基-L-苯丙氨酸β-甲酯溶于甲醇/盐酸混合物溶剂中,所述溶剂含有当盐酸以 浓盐酸和水,0至20体积%甲醇,8至55体积%浓盐酸和水(余量),浓度为0.01mol / dl至0.3mol / dl; 将溶液保持在0〜60℃,进行分子内酯交换反应,结晶形成的α-L-天冬氨酰-L-苯丙氨酸甲酯为盐酸盐; 分离盐酸盐; 并且当需要时通过用碱中和获得游离酯。