Diisopropylethylamine → HCID 68289147, compound

Participants

Reaction Steps

A mixture of 5-amino-2-ethyl-4-methylbenzoic acid (compound 48.4, 100 mg, 0.56 mmol, 1.00 equiv), 4-(4-fluoropiperidin-4-yl)benzonitrile (compound 11.2, 140 mg, 0.69 mmol, 1.23 equiv), HBTU (320 mg, 0.84 mmol, 1.51 equiv), and DIEA (150 mg, 1.16 mmol, 2.08 equiv) in DMF (20 mL) was stirred for 48 h at room temperature. Water (30 mL) was added and the resulting mixture was extracted with 3×20 mL of ethyl acetate. The combined organic layers were washed with 1×50 mL of brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified using silica gel column chromatography with PE:EtOAc (1:1) to yield 130 mg (38%) of the title compound as a light yellow solid.

Provenance & Evidence