1,8-NAPHTHYRIDINE COMPOUNDS
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Abstract
There is described 2-amino-5,7-disubstituted-naphthyridine and 5,7-disubstituted-naphthyridin-2(1H)-one derivatives with bronchodilating and hypotensive properties prepared by the reaction of 2,6-diaminopyridine with an appropriate Beta diketone providing the 2-amino products. The 2-oxo analogs are prepared from the 2-amino products by treatment with nitrous acid.
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Citations
8 Claims
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1. A 1,8-NAPHTHYRIDINE HAVING THE STRUCTURE 1
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2. A product as claimed in claim 1 wherein R5 and R7 are each trifluoromethyl.
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3. A compound as claimed in claim 1 wherein R5 is lower alkyl and R7 is trifluoromethyl.
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4. A compound as claimed in claim 1 wherein R5 is trifluoromethyl and R7 is lower alkyl.
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5. A compound as claimed in claim 1 wherein R5 is methyl and R7 is trifluoromethyl.
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6. A compound as claimed in claim 1 wherein R5 is trifluoromethyl and R7 is methyl.
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7. A compound as claimed in claim 1 wherein R5 is lower alkyl and R7 is pentafluoroethyl.
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8. A compound as claimed in claim 1 wherein R5 is 2-thienyl and R7 is trifluoromethyl.
Specification