Regioselective Preparation of 1-(Bromomethyl)-5H-thiazolo[3,2-a]quinazolin-5-ones and Analogous 5H-Thieno[3,2-e]thiazolo[3,2-a]pyrimidin-5-ones from Fused 2-(Alkenylthio)pyrimidin-4-ones// Wippich, P.; Gutschow, M.; Leistner, S. Synthesis 2000, 714
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http://dx.doi.org/10.1055/s-2000-6390