Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
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A New Synthesis of N-Alkyl 3-Acetyl-4-methoxycarbonylmethyl-2-methyl-1,4-dihydropyridines Utilizing sec-Aminodienyl Esters with Acetylacetone
Takeshi Koike, Naoki Takeuchi
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Keywords: aminodienyl ester, acetylacetone, 1,4-dihydropyridine, azaelectrocyclization reaction
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2002 Volume 50 Issue 4 Pages 484-488

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Abstract
The reactions of sec-aminodienyl esters 3 with acetylacetone (4) afforded N-alkyl 3-acetyl-4-methoxycarbonylmethyl-2-methyl-1,4-dihydropyridines 5 and enamines 6, providing a new azaelectrocyclization reaction.
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© 2002 The Pharmaceutical Society of Japan
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