Enantiopure N-acyldihydropyridones as sy
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Daniel L. Comins; Nezha Radi Benjelloun
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Article
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1994
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Elsevier Science
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French
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The trans-pip&dine alkaloid, (-)-solenopsin A. was prepared in seven steps from readily available 4-~haxy-3\_(niiropropyrsilyllpyrfdin in 43% overall yield. The addition of organ~tallics to chiral 1-acylpyridinium salt 1 gives N-acyl-2-alkyl-23&hydta~4pyridones 2 with high diastereoselectivity.\*~ T