Sweetener salts of
N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl
ester
    6.
    发明授权
    Sweetener salts of N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl ester 失效
    N- [N-(3,3-二甲基丁基)-L-α-天冬氨酰基] -L-苯丙氨酸1-甲酯的甜味剂盐

    公开(公告)号:US6129942A

    公开(公告)日:2000-10-10

    申请号:US148134

    申请日:1998-09-04

    申请人: Indra Prakash Zhi Guo

    发明人: Indra Prakash Zhi Guo

    CPC分类号: C07K5/06113 A23L27/32

    摘要: Dipeptide sweeteners are disclosed that are sweetener salts of N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl ester represented by the formula ##STR1## wherein X.sup.m- is a conjugate base derived by deprotonation of an acidic sweetener, preferably saccharin, acesulfame, cyclamic acid and glycyrrhizic acid; and m=n. Also disclosed is a liquid low-calorie sweetener containing such basic salts.

    摘要翻译: 公开了二肽甜味剂,其为由下式表示的N- [N-(3,3-二甲基丁基)-L-α-天冬氨酰基] -L-苯丙氨酸1-甲酯的甜味剂盐,其中Xm-是通过去质子化衍生的共轭碱 的酸性甜味剂,优选糖精,乙酰磺胺酸,环己烷氨基酸和甘草酸; 并且m = n。 还公开了含有这种碱性盐的液体低热量甜味剂。

    Synthesis of N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester using L-&agr;-aspartyl-L-phenylalanine 1-methyl ester precursors
    8.
    发明授权
    Synthesis of N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester using L-&agr;-aspartyl-L-phenylalanine 1-methyl ester precursors 有权
    使用L-α-天冬氨酰-L-苯丙氨酸1-甲酯前体合成N- [N-(3,3-二甲基丁基)-L-α-天冬氨酰基] -L-苯丙氨酸1-甲基酯

    公开(公告)号:US06642406B2

    公开(公告)日:2003-11-04

    申请号:US09859438

    申请日:2001-05-18

    IPC分类号: C07C22900

    CPC分类号: C07K5/06113

    摘要: N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester is produced by hydrogenation of a mixture of 3,3-dimethylbutyraldehyde and a precursor of L-&agr;-aspartyl-L-phenylalanine 1-methyl ester. In particular, N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester is produced using an acid salt of L-&agr;-aspartyl-L-phenylalanine 1-methyl ester or N-protected L-&agr;-aspartyl-L-phenylalanine 1-methyl ester. The production method is efficient and low cost, as compared with conventional N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester synthesis.

    摘要翻译: N- [N-(3,3-二甲基丁基)-L-α-天冬氨酰基] -L-苯丙氨酸1-甲酯是通过3,3-二甲基丁醛和L-α-天冬氨酰基 - L-苯丙氨酸1-甲酯。 特别地,使用L-α-天冬氨酰基-L-苯丙氨酸1-甲酯的酸式盐制备N- [N-(3,3-二甲基丁基)-L-α-天冬氨酰基] -L-苯丙氨酸1-甲基酯 或N-保护的L-α-天冬氨酰基-L-苯丙氨酸1-甲酯。 与常规N- [N-(3,3-二甲基丁基)-L-α-天冬氨酰基] -L-苯丙氨酸1-甲酯合成相比,该方法是有效且成本低的。

    Metal complexes of
N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl
ester
    9.
    发明授权
    Metal complexes of N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl ester 有权
    N- [N-(3,3-二甲基丁基)-L-α-天冬氨酰基] -L-苯丙氨酸1-甲酯的金属络合物

    公开(公告)号:US6146680A

    公开(公告)日:2000-11-14

    申请号:US146965

    申请日:1998-09-04

    申请人: Indra Prakash Zhi Guo

    发明人: Indra Prakash Zhi Guo

    CPC分类号: C07K5/06113 A23L27/32

    摘要: Dipeptide sweeteners are disclosed that are metal complexes of N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl ester represented by the formula ##STR1## wherein X.sup.p+ is selected from the group consisting of Al.sup.3+, Fe.sup.2+, Fe.sup.3+, Ca.sup.2+, Mg.sup.2+ and Zn.sup.2+ ; Y.sup.q- is selected from the group consisting of Cl.sup.-, SO.sub.4.sup.2-, PO.sub.4.sup.3- and CH.sub.3 COO.sup.- ; x is a number from 1 to 4 and pn=qm. Also disclosed is a liquid low-calorie sweetener containing such metal complexes.

    摘要翻译: 二肽甜味剂是由下式表示的N- [N-(3,3-二甲基丁基)-L-α-天冬氨酰基] -L-苯丙氨酸1-甲酯的金属络合物,其中Xp +选自Al3 + ,Fe2 +,Fe3 +,Ca2 +,Mg2 +和Zn2 +; Yq-选自Cl-,SO42-,PO43-和CH3COO-; x是从1到4和pn = qm的数字。 还公开了含有这种金属络合物的液体低热量甜味剂。

    Preparation of 3, 3-dimethylbutyraldehyde from a tert-butyl cation
precursor, vinyl chloride and an acidic catalyst
    10.
    发明授权
    Preparation of 3, 3-dimethylbutyraldehyde from a tert-butyl cation precursor, vinyl chloride and an acidic catalyst 失效
    由叔丁基阳离子前体,氯乙烯和酸性催化剂制备3,3-二甲基丁醛

    公开(公告)号:US5977415A

    公开(公告)日:1999-11-02

    申请号:US136974

    申请日:1998-08-20

    申请人: Indra Prakash Zhi Guo

    发明人: Indra Prakash Zhi Guo

    IPC分类号: C07C45/42 C07C45/50

    CPC分类号: C07C45/42

    摘要: This invention provides a method for preparing 3,3-dimethylbutyraldehyde from a tert-butyl cation precursor and vinyl chloride. The tert-butyl cation precursor is contacted with vinyl chloride in the presence of an inorganic acid, and the product is allowed to react with water to form 3,3-dimethylbutyraldehyde.

    摘要翻译: 本发明提供了由叔丁基阳离子前体和氯乙烯制备3,3-二甲基丁醛的方法。 叔丁基阳离子前体在无机酸存在下与氯乙烯接触,使产物与水反应形成3,3-二甲基丁醛。