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Paper | Regular issue | Vol 51, No. 5, 1999, pp.1051-1058
Published online, 1st January, 1970
DOI: 10.3987/COM-99-8482
A One-Step Transformation of (S)-1-Benzoyl-3[(E)-dimethylaminomethylidene]-5-methoxycarbonylpyrrolidin-2-one into Quinolizinyl- and 2H-2-Pyranonyl-substituted Alanine Derivatives

Marko Skof, Jurij Svete,* and Branko Stanovnik*

*Faculty of Chemistry and Chemical Technology, University of Ljubljana, Askerceva 5, P.O. Box 537, SLO-1000 Ljubljana, Slovenia

Abstract

(S)-1-Benzoyl-3-[(E)-dimethylaminomethylidene]-5-methoxycarbonylpyrrolidin-2-one (1) was transformed in one step with various 1,3-dinucleophiles (2-14) into the corresponding N-benzoyl-3-quinolizinyl-(15-18) and N-benzoyl-3-(2H-2-pyranonyl)alanine methyl esters (19-27).