Methanesulfonic acid, trifluoro-, 2-methylpropyl ester → tert-Butyl 2-[5-chloro-4-(5-chloro-2-cyanophenyl)-2-oxopyridin-1(2H)-yl]-4-methylpentanoate

Participants

Reaction Steps

416 mg (1.00 mmol) of tert-butyl [5-chloro-4-(5-chloro-2-cyanophenyl)-2-oxopyridin-1(2H)-yl]acetate in the presence of 0.95 ml (0.95 mmol, 1.2 eq.) of bis(trimethylsilyl)lithium amide (1M in THF) and 326 mg (1.58 mmol, 2.0 eq.) of isobutyl trifluoromethanesulphonate were reacted according to General Method 7B. Yield: 139 mg (purity 85%, 34% of theory)

Provenance & Evidence