Discovery and Process Synthesis of Novel 2,7-Pyrrolo[2,1-<i>f</i>][1,2,4]triazines
作者:Tho Thieu、Joseph A. Sclafani、Daniel V. Levy、Andrew McLean、Henry J. Breslin、Gregory R. Ott、Roger P. Bakale、Bruce D. Dorsey
DOI:10.1021/ol2015237
日期:2011.8.19
The synthesis of a new kinase inhibitor template 2-anilino-7-aryl-pyrrolo[2,1-f][1,2,4]triazine Is described which Includes a late stage orthogonally reactive key intermediate amenable to rapid diversification as well an optimized in situ triflate displacement to install the C2-aniline. Furthermore, an efficient scalable process approach will be highlighted which begins with tert-butyl carbazate to provide the key N-N bond and generates the pyrrolotriazine core through a stable bromoaldehyde intermediate followed by condensation with ammonium carbonate.