Tetrahedron Letters p. 8733 - 8734 (1996)
Update date:2022-08-28
Topics:
Villemin, Didier
Liao, Liang
Cerpegin 1 was synthesized in a one-pot reaction at room temperature catalysed by cesium carbonate with an overall of 75% yield. 3-Hydroxy-3-methyl-2-butanone 2 reacted with diethyl malonate 3 to give 2-ethoxycarbonyl-3,4,4-trimethyl-2-buten-4-olide 4. Then 4 with s-triazine gave to 1,1-dimethylfuro[3,4-c]pyridine-3,4(1H, 5H)-dione 5 and which was alkylated with methyliodide to cerpegin.
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