Piperidine → HCID 25211187, compound
Reaction equation
[F:1][CH:2]([F:17])[C:3]1[O:7][N:6]=[C:5]([C:8]2[S:12][C:11]([C:13]([OH:15])=O)=[CH:10][CH:9]=2)[C:4]=1[CH3:16].[NH:18]1[CH2:23][CH2:22][CH2:21][CH2:20][CH2:19]1>>[F:17][CH:2]([F:1])[C:3]1[O:7][N:6]=[C:5]([C:8]2[S:12][C:11]([C:13]([N:18]3[CH2:23][CH2:22][CH2:21][CH2:20][CH2:19]3)=[O:15])=[CH:10][CH:9]=2)[C:4]=1[CH3:16]Participants
3
Procedure
Prepared from 5-(5-Difluoromethyl-4-methyl-isoxazol-3-yl)-thiophene-2-carboxylic acid (Preparative Example 26) and piperdine 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, 3 H), 2.34 (s, 3 H), 3.67-3.70 (m, 4 H), 6.80 (t, J=53.2, 1 H), 7.30 (d, J=4.0, 1 H), 7.43 (d, J=3.5, 1 H).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.
Workup
- customThe reaction mixture was evaporated in vacuo
- customchromatographed on silica gel with EtOAc/hexanes (30
Sources & evidence
- ORD record
- ord-43ae97e70e3544cba9aa545488eff8ca
- Source dataset
- uspto-grants-2012_07
- Patent number
- US08222243B2
Reaction notes
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