Methyl (2-methylbut-3-yn-2-yl)carbamate → (Z)-[3-[2,3-dihydro-5-fluoro-3-[(4-methyl-1H-imidazol-5-yl)methylene]-2-oxo-1H-indol-4-yl]-1,1-dimethyl-2-propynyl]carbamic acid methyl ester

Participants

Reaction Steps

Using Method C above, (1,1-dimethyl-2-propynyl)-carbamic acid methyl ester (47.7 mg, 0.34 mmol) (see below) was coupled with (Z)-1,3-dihydro-5-fluoro-4-iodo-3-[(4-methyl-1H-imidazol-5-yl)methylene]-2H-indol-2-one (Starting Material 3 supra) (50 mg, 0.135 mmol) using (Ph3P)4Pd (16 mg) and Cul (3 mg) as catalyst in DMF (3 mL) and Et3N (3 mL) as solvent at 80° C. for 5 h to give

Provenance & Evidence