Tetrahydro-2H-pyran-3-ylmethyl trifluoromethanesulphonate → tert-Butyl 2-[4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-3-(tetrahydro-2H-pyran-3-yl)propanoate

Participants

Reaction Steps

450 mg (purity 94%, 1.13 mmol) of tert-butyl [4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]acetate in the presence of 1.24 ml (1.24 mmol, 1.1 eq.) of bis(trimethylsilyl)lithium amide (1M in THF) and 467 mg (1.69 mmol, 1.5 eq.) of tetrahydro-2H-pyran-3-ylmethyl trifluoromethanesulphonate (racemate) were reacted according to General Method 7B. Yield: 451 mg (purity 82%, 69% of theory)

Provenance & Evidence