Diisopropylethylamine → HCID 86710203, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-chloro-5-methyl-7H-pyrrolo[2,3-d]pyrimidine D4 (1 g), 1,1-dimethylethyl methyl(4-piperidinyl)carbamate (1.918 g, 8.95 mmol, commercially available from e.g. Fluorochem, Apollo or Butt Park) and N,N-diisopropylethylamine (2.61 mL, 14.92 mmol) was heated at 150° C. for 20 minutes. LC/MS showed incomplete reaction. Further NMP (2 mL) and DIPEA (1.3 mL) was added. The mixture was heated at 150° C. for 20 minutes. The mixture was partitioned between ethyl acetate (70 mL) and water (60 mL) and the organic phase washed with water (2×60 mL) and brine (50 mL). It was dried (MgSO4), filtered and the solvent removed in vacuo. The crude material was purified by silica chromatography, eluting 50-100% EtOAc in isohexane. The desired fractions collected and the solvent has been evaporated to give the desired product D22 in 0.793 g as a white solid. LCMS [M+H][email protected] min (2 min run)

Provenance & Evidence