S. B. Brown and M. J. S. Dewar
pp 1331 - 1337
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http://dx.doi.org/10.1021%2Fjo00401a0101988, Volume 25, pp. 81-87
Directed Lithiation of 4-Halopyridines: Chemoselectivity, Regioselectivity and Application to Synthesis
F. Marsais, F. Trecourt, P. Breant, G. Queguiner
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https://www.jhetchem.com/cd2html.php?file=198800811977, Volume 14, pp. 129-134
A Facile Synthesis of 2-Aminothiazolo[5,4-b]- and 2-Aminothiazolo[4,5-c]pyridines
Henry W. Altland, Gary A. Molander
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https://www.jhetchem.com/cd2html.php?file=19770129