Diethyl Pyrocarbonate → 1-[(4-fluorophenyl)sulfonyl-methyl-amino]-N-[[3-[4-(trifluoromethoxy)phenyl]phenyl]methyl]cyclopropanecarboxamide

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Reaction Steps

Acid 15A (350 mg, 1.28 mmol) was dissolved in 5 ml of THF and at rt DEPC (0.25 mL, 1.3 mol eq) and [3-[4-(trifluoromethoxy)phenyl]phenyl]methanamine 23B (0.376 g, 1.1 mol eq) were added to the solution. The mixture was stirred at rt overnight then evaporated. he residue was dissolved in AcOEt (30 ml) and washed with water (1×20 ml) and brine. The organic phase was dried over sodium sulfate and concentrated under vacuum. The purification of the crude by chromatographic column (3:7 EtOAc:Petroleum ether) afforded 100 mg of a white solid. Yield=15% 1HNMR (DMSO, 200 MHz) δ 1.09 (2H, bs), 1.34 (2H, bs), 3.00 (3H, s), 4.35 (2H, d, J=5.8 Hz), 7.43 (8H, m), 7.81 (4H, m), 8.17 (1H, bt); [M+1] 523.9 (C25H22F4N2O4S requires 522.51).

Provenance & Evidence