Methanesulfonyl chloride → 4-(4-Amino-6-{4-[4-(4-fluoro-3-methyl-phenyl)-1-(2-methanesulfonyloxy-ethyl)-1H-imidazol-2-yl]-piperidin-1-yl}-pyrimidin-5-yl)-pyrazole-1-carboxylic acid tert-butyl ester

Participants

Reaction Steps

To a stirring solution of 4-(4-amino-6-{4-[4-(4-fluoro-3-methyl-phenyl)-1-(2-hydroxy-ethyl)-1H-imidazol-2-yl]-piperidin-1-yl}-pyrimidin-5-yl)-pyrazole-1-carboxylic acid tert-butyl ester (350.00 mg; 0.62 mmol; 1.00 eq.) in THF 5 ml added ethyl-diisopropyl-amine (0.28 ml; 1.56 mmol; 2.50 eq.), then added drop wised methanesulfonyl chloride (0.10 ml; 1.24 mmol; 2.00 eq.) at 0° C., the reaction mixture was stirred at RT for 1 hr, LC-MS showed desired as major, and starting material disappeared, removed off solvent, directly carried the crude product for next step reaction.

Provenance & Evidence