Details for Patent: 3,883,545
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Summary for Patent: 3,883,545
Title: | CERTAIN 1-HYDROXY-2-PYRIDONES |
Abstract: | New 1-hydroxy-2-pyridones of the general formula ##SPC1## In which R.sub.1 is alkyl of 1 to 17 carbon atoms, cycloalkyl of 5 to 8 carbon atoms, cyclohexylalkyl or phenalkyl both having 1 to 3 carbon atoms in the alkylene chain or .alpha.-furyl, all of which may be substituted by halogen and R.sub.2 to R.sub.4 are hydrogen or lower alkyl or 2 adjacent substituents together form a trimethylene or tetramethylene chain, and in which R.sub.1 to R.sub.4 together contain at least 2 carbon atoms, are prepared by contacting unsaturated .delta.-keto esters or mixtures thereof with hydroxylamine and subjecting the products to cyclization. The compounds exhibit antimycotic properties. |
Inventor(s): | Lohaus; Gerhard (Kelkheim/Taunus, DT), Dittmar; Walter (Hofheim/Taunus, DT) |
Assignee: | Hoechst Aktiengesellschaft (Frankfurt am Main, DT) |
Application Number: | 05/317,387 |
Patent Claim Types: see list of patent claims | Compound; |
Drugs Protected by US Patent 3,883,545
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Foreign Priority and PCT Information for Patent: 3,883,545
Foriegn Application Priority Data | ||
Foreign Country | Foreign Patent Number | Foreign Patent Date |
1795270 | Aug 31, 1968 |
International Family Members for US Patent 3,883,545
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