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Tetrahedron, Volume 64, Issue 35, Pages 8182-8187
N,N-Disubstituted propargylamines as tools in the sequential 1,3-dipolar cycloaddition/arylation processes
to the formation of polyheterocyclic systems
Luca Basolo, Egle M. Beccalli, Elena Borsini, Gianluigi Broggini and Sara Pellegrino
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http://dx.doi.org/10.1016/j.tet.2008.06.042