Piperidine → HCID 25211187, compound

Participants

Reaction Steps

Prepared from 5-(5-Difluoromethyl-4-methyl-isoxazol-3-yl)-thiophene-2-carboxylic acid (Preparative Example 26) and piperidine by the method described in Example 2 Method B. The reaction mixture was evaporated in vacuo, then chromatographed on silica gel with EtOAc/hexanes (30 then 40%) as eluant to afford product as a colorless solid (54 mg, 66%). 1H NMR (CDCl3) 1.65-1.72 (6, 3H), 2.34 (s, 3H), 3.67-3.70 (m, 4H), 6.80 (t, J=53.2, 1H), 7.30 (d, J=4.0, 1H), 7.43 (d, J=3.5, 1H). 13C NMR 7.7, 24.7, 26.3, ˜46 (br), 39.8 (br), 108.1 (t, J=238), 113.5, 127.6, 128.9, 131.6, 140.1, 157.8, 159.5 (q, J=29), 162.7. 19F NMR −118.2 (J=53.5). LC/MS 6.18 min, [M+1]+ 327.

Provenance & Evidence