alpha-Dibromides of BOC-protected 1-aminopyrrole and 4-amino-1,2,4-triazole have been prepared and their molecular structures have been confirmed by X-ray crystallography. They can be used for polymer synthesis.
[EN] NEW CRTH2 ANTAGONISTS<br/>[FR] NOUVEAUX ANTAGONISTES DE CRTH2
申请人:ALMIRALL SA
公开号:WO2013010880A1
公开(公告)日:2013-01-24
The present invention relates to compounds of formula (I), to the process for preparing such compounds and to their use in the treatment of a pathological condition or disease susceptible to amelioration by CRTh2 antagonist activity.
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.