PROCESS FOR THE PREPARATION OF [(1R),2S]-2-AMINOPROPIONIC ACID 2-[4-(4-FLUORO-2-METHYL-1H-INDOL-5-YLOXY)-5-METHYLPYRROLO[2,1-f][1,2,4]TRIAZIN-6-YLOXY]-1-METHYLETHYL ESTER

摘要

The invention relates to an improved process for preparing [(1R),2S]-2-aminopropionic acid 2-[4-(4-fluoro-2-methyl-1H-indol-5-yloxy)-5-methylpyrrolo[2,1-f][1,2,4]triazin-6-yloxy]-1-methylethyl ester of the formula (I). Compound (I) has been shown to be useful for the treatment of certain types of cancer.