| 摘要 |
Indolizino[7,6,5-de]isoquinoline derivatives of the general formula: <IMAGE> I wherein the symbol R1 represents a hydrogen atom, the symbol R2 represents a hydrogen atom, an amino radical, or a straight- or branched-chain alkyl radical which is optionally substituted on a terminal carbon atom by a vinyl, ethynyl, carboxy, alkoxycarbonyl, cyano, dialkoxymethyl, hydroxymethyl, dialkylaminomethyl (the alkyl radicals of which may form with the nitrogen atom to which they are attached a saturated five- or six-membered heterocyclic ring which may contain another hetero-atom selected from nitrogen, oxygen and sulphur, and - when a second nitrogen atom is present - may optionally be N-methylated) or trialkylammoniomethyl radical, or R2 represents a straight- chain alkyl radical which is substituted on the terminal carbon atom by an aminomethyl, alkylaminomethyl or hydroxyalkylaminomethyl radical, and the symbols R3 and R4 together form a valence bond, or the symbols R1 and R4 together form a valence bond and the symbols R2 and R3 together form a grouping of the general formula: <IMAGE> II wherein the group -OR5, which represents an alkoxy radical, is attached to the carbon atom situated in the alpha -position to the nitrogen atom carrying R3, the alkyl and alkoxy radicals, or moieties of groups, within the definition of symbols R2 and R5 containing from 1 to 4 carbon atoms and their salts are active as antimicrobial agents and antifungal agents, and are suitable for use as local antiseptics. |
