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Beilstein J. Org. Chem. 2014, 10, 287–292, doi:10.3762/bjoc.10.25
Graphical Abstract
Figure 1: Some DHPMs-based lead compounds.
Scheme 1: Regioselective 1,3-thiazines and DHPMs via aldehydes, ureas/thioureas and alkynes.
Scheme 2: Synthesis of enamino ester intermediate and its transformation to DHPM.
Scheme 3: Proposed reaction mechanism.