N-ACETYLCARBOXYMETHYLCHITOSAN DERIVATIVE AND PRODUCTION THEREOF
    2.
    发明授权
    N-ACETYLCARBOXYMETHYLCHITOSAN DERIVATIVE AND PRODUCTION THEREOF 失效
    N-乙酰半胱氨酸衍生物及其生产方法

    公开(公告)号:EP0544000B1

    公开(公告)日:1997-05-02

    申请号:EP91914632.4

    申请日:1991-08-16

    IPC分类号: C08B37/08 C08B37/00 A61K47/48

    CPC分类号: C08B37/003

    摘要: A novel N-acetylcarboxymethylchitosan derivative represented by general formula (I) and having the following properties (1) to (4): (1) degree of carboxymethylation: 0.5 - 1.2, (2) molecular weight (according to gel filtration): 3,000 - 300,000, (3) a/(a+b): 0.01 - 1 wherein a = a1 + a2, (4) P/X (by mole): 0.1 - 1. Formula (I), wherein R1 and R2 represent each hydrogen or carboxymethyl; P represents R3CO, R4NH or R5O; Q represents hydrogen or hydroxy; X represents a peptide chain containing 1 to 10 same or different amino acid residues; R3COOH, R4NH2 and R5OH represent carboxylic acid, amine and alcohol compounds, respectively; a1 and a2 represent each 0 or a positive integer except for the case where both of them are 0 at the same time; and b represents a positive integer. When the P group in the formula (I) represents a group derived from a pharmaceutical compound, the substance of the formula (I) is useful as a drug improved in the directivity toward a target organ.

    摘要翻译: (1)〜(4)所示的新型N-乙酰羧甲基壳聚糖衍生物:(1)羧甲基化度:0.5〜1.2,(2)分子量(根据凝胶过滤):3,000 式(I)中,R 1和R 2分别表示 - ( - ) - 300,000,(3)a /(a + b):0.01-1其中a = a1 + a2,(4)P / 氢或羧甲基; P表示R3CO,R4NH或R5O; Q代表氢或羟基; X代表含有1至10个相同或不同氨基酸残基的肽链; R 3 COOH,R 4 NH 2和R 5 OH分别代表羧酸,胺和醇化合物; 除了两者同时为0的情况之外,a1和a2分别表示0或正整数; b表示正整数。 当式(I)中的P基团表示来源于药物化合物的基团时,式(I)的物质可用作改善靶器官指向性的药物。

    N-ACETYLCARBOXYMETHYLCHITOSAN DERIVATIVE AND PRODUCTION THEREOF
    5.
    发明公开
    N-ACETYLCARBOXYMETHYLCHITOSAN DERIVATIVE AND PRODUCTION THEREOF 失效
    N-乙酰半胱氨酸衍生物及其生产方法

    公开(公告)号:EP0544000A1

    公开(公告)日:1993-06-02

    申请号:EP91914632.4

    申请日:1991-08-16

    IPC分类号: C08B37/08 C08B37/00 A61K47/48

    CPC分类号: C08B37/003

    摘要: A novel N-acetylcarboxymethylchitosan derivative represented by general formula (I) and having the following properties (1) to (4): (1) degree of carboxymethylation: 0.5 - 1.2, (2) molecular weight (according to gel filtration): 3,000 - 300,000, (3) a/(a+b) : 0.01 - 1 wherein a = a₁ + a₂ , (4) P/X (by mole): 0.1 - 1. Formula (I), wherein R₁ and R₂ represent each hydrogen or carboxymethyl; P represents R₃CO, R₄NH or R₅O; Q represents hydrogen or hydroxy; X represents a peptide chain containing 1 to 10 same or different amino acid residues; R₃COOH, R₄NH₂ and R₅OH represent carboxylic acid, amine and alcohol compounds, respectively; a₁ and a₂ represent each 0 or a positive integer except for the case where both of them are 0 at the same time; and b represents a positive integer. When the P group in the formula (I) represents a group derived from a pharmaceutical compound, the substance of the formula (I) is useful as a drug improved in the directivity toward a target organ.

    摘要翻译: (1)〜(4)所示的新型N-乙酰羧甲基壳聚糖衍生物:(1)羧甲基化度:0.5〜1.2,(2)分子量(根据凝胶过滤):3,000 式(I)中,R 1和R 2分别代表各自独立的碳原子数为1〜3的(a),(b), 氢或羧甲基; P代表R 3 CO,R 4 NH或R 5 O; Q代表氢或羟基; X代表含有1至10个相同或不同氨基酸残基的肽链; R 3 COOH,R 4 NH 2和R 5 OH分别代表羧酸,胺和醇化合物; a 1和a 2分别代表0或正整数,除了它们两者同时为0的情况; b表示正整数。 当式(I)中的P基团表示来源于药物化合物的基团时,式(I)的物质可用作改善靶器官指向性的药物。

    DERIVATIVE OF GLYCOLIPID CONTAINING SIALIC ACID
    8.
    发明公开
    DERIVATIVE OF GLYCOLIPID CONTAINING SIALIC ACID 失效
    含有唾液酸的甘油脂衍生物

    公开(公告)号:EP0489162A1

    公开(公告)日:1992-06-10

    申请号:EP91904345.5

    申请日:1991-02-25

    IPC分类号: C07H15/14 C07H15/04 A61K9/127

    摘要: A derivative of a glycolipid containing a sialic acid of general formula (I), a process for the production thereof, and a particulate carrier containing the derivative as the constituent. In formula (I), the symbol represents either an α or β linkage; R¹ represents hydrogen or acetyl; R² represents hydrogen, C₁ to C₄ lower alkyl or alkali metal ion; X represents oxygen, sulfur, or a residue represented by the following formula (II) or (III): -O(CH₂) m NHCO- (II), wherein m is an integer of 1 to 10, -O(CH₂)mCONH-  (III) and Y represents a group of formula (IV); wherein A represents a C₁₀ to C₄₀ linear or branched acylamino or the like, B represents hydrogen, carboxyl or a group of formula (V), and n and n' are each an integer of 0 to 3.

    摘要翻译: 含有通式(I)的唾液酸的糖脂的衍生物,其制造方法以及含有该衍生物作为构成成分的颗粒状载体。 在式(I)中,符号代表α或β键; R 1代表氢或乙酰基; R 2代表氢,C 1 -C 4低级烷基或碱金属离子; X代表氧,硫或下式(Ⅱ)或(Ⅲ)代表的残基:-O(CH 2)mNHCO-(Ⅱ),其中m为1至10的整数,-O(CH 2)m CONH- (III)且Y代表式(IV)的基团; A代表C 10 -C 40直链或支链酰氨基等,B代表氢,羧基或式(V)基团,n和n'各自为0-3的整数。