MALEIC ACID HALFAMIDES
    6.
    发明专利

    公开(公告)号:CA1108629A

    公开(公告)日:1981-09-08

    申请号:CA318131

    申请日:1978-12-18

    Applicant: DEGUSSA

    Abstract: The present invention provides hemiamides of unsaturated aliphatic dicarboxylic acids having the general formula (I) wherein R1, R2 and R3 are identical or different and represent hydrogen, a halogen atom, a hydroxy group, a methyl group or a methoxy group or two of those radicals together represent a methylene-dioxy group, R4 represents hydrogen or a methyl group, the radicals R6 and R7 represent, independently of each other, hydrogen or C1-C4-alkyl groups, and n is 0 or 1, and their salts, the N-(2-(3-hydroxy-phenyl)-2-hydroxy-ethyl)- maleic monoamide being excluded in the case of the free acids. The hemiamides have pharmacological properties.

    7.
    发明专利
    未知

    公开(公告)号:DD142883A5

    公开(公告)日:1980-07-16

    申请号:DD21212778

    申请日:1978-01-10

    Applicant: DEGUSSA

    Abstract: There are prepared compounds of the formula (I) where >A-B- has either the structure >C(OH)-CH2- or the structure >C=CH, Alk is a straight or branched chain C1-C5-alkylene group and Y is where R is hydrogen or a C1-C4-alkyl group and T is hydrogen or a C2-C6-alkanoyl group where R' is hydrogen, phenyl, phenyl substituted once or twice. The compounds are effective in improving peripheral and cerebral circulation. There are also produced intermediate compounds of formula (II) where NHY is replaced by chlorine, bromine or iodine.

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