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    • 70. 发明专利
    • DE3853493T2
    • 1995-07-27
    • DE3853493
    • 1988-05-26
    • MAEDA HIROSHIKURARAY CO
    • MAEDA HIROSHISUZUKI FUJIOODA TATSUYA
    • A61K38/44C12N9/02
    • The invention provides a superoxide dismutase derivative of the general formula [SOD] [Z]n wherein [SOD] represents a superoxide dismutase having 1 to 22 or 24 groups each derived from an amino group by removal of one hydrogen atom in lieu of amino groups; [Z] represents a monovalent copolymer group, constituting units of which are a group of the formula wherein R , R , R and R each represents a hydrogen atom or a residue derived by removal of a hydroxyl group from an alkanol of 1 to 8 carbon atoms, an ethylene glycol monoalkyl ether containing an alkyl moiety of 1 to 4 carbon atoms or a glycerin dialkyl ether containing alkyl moieties of 1 to 4 carbon atoms, provided that either R or R and either R or R each represents a hydrogen atom, and a residue derived from the group of the above-mentioned formula by removal of OR , OR , OR or OR group from one of its COOR , COOR , COOR and COOR groups (where the bond on the carbon atom of the carbonyl group is attached to [SOD]), said monovalent copolymer group having an average molecular weight of 500 to 200,000; and n represents an integer of 1 to 22 or 24 corresponding to the number of said groups each derived from an amino group by removal of one hydrogen atom in said [SOD], or a pharmaceutically acceptable salt thereof. There also is provided a method for producing the above derivative and salt. The invention is further directed to medicinal uses and pharmaceutical compositions for oral administration.