10.
    发明专利
    未知

    公开(公告)号:FI943902A0

    公开(公告)日:1994-08-25

    申请号:FI943902

    申请日:1994-08-25

    Applicant: HOECHST AG

    Abstract: There are described 17-alkyl carbonate-21-carbonic/carboxylic acid esters of corticosteroids of the formula I where A is CHOH or CHCl, CH2, C = O, a 9(11) double bond; Y is H, F, Cl; Z is H, F, CH3; R(1) is aryl, hetaryl; n and m are zero or 1; R(2) is alkyl, -(CH2)2-OCH3; R(3) is H, methyl. They are obtained by reacting a compound of the formula II in which R(5) is OH, with an activated carboxylic acid of the formula III R(6)-CO-(O)n-[(C1-C4)-alkyl]m-R(1) III The compounds I have very potent local and topical anti-inflammatory activity and show a very good ratio of local to systemic anti-inflammatory action, which is often clearly superior compared with analogous corticoid 17-alkyl carbonate 21-esters which do not carry an aryl or hetaryl group in the 21 ester radical.

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