4-[5-(4-Benzyloxy-3-ethyl-5-methyl-phenyl)-[1,3,4]oxadiazol-2-yl]-2-cyclopentyl-6-methoxy-pyridine → 4-[5-(2-Cyclopentyl-6-methoxy-pyridin-4-yl)-[1,3,4]oxadiazol-2-yl]-2-ethyl-6-methyl-phenol
Reaction equation
C([O:8][C:9]1[C:14]([CH3:15])=[CH:13][C:12]([C:16]2[O:20][C:19]([C:21]3[CH:26]=[C:25]([O:27][CH3:28])[N:24]=[C:23]([CH:29]4[CH2:33][CH2:32][CH2:31][CH2:30]4)[CH:22]=3)=[N:18][N:17]=2)=[CH:11][C:10]=1[CH2:34][CH3:35])C1C=CC=CC=1>C1COCC1.CO.[Pd]>[CH:29]1([C:23]2[CH:22]=[C:21]([C:19]3[O:20][C:16]([C:12]4[CH:13]=[C:14]([CH3:15])[C:9]([OH:8])=[C:10]([CH2:34][CH3:35])[CH:11]=4)=[N:17][N:18]=3)[CH:26]=[C:25]([O:27][CH3:28])[N:24]=2)[CH2:30][CH2:31][CH2:32][CH2:33]1Participants
Reactant 1
Product 1
Reagents, catalysts & solvents 3
Procedure
Pd/C (150 mg, 10% Pd) is added to a solution of 4-[5-(4-benzyloxy-3-ethyl-5-methyl-phenyl)-[1,3,4]oxadiazol-2-yl]-2-cyclopentyl-6-methoxy-pyridine (750 mg, 1.60 mmol) in THF (20 mL) and methanol (20 mL). The mixture is stirred under 1 bar of H2 at rt for 24 h. The catalyst is removed by filtration and the filtrate is concentrated and dried to give 4-[5-(2-cyclopentyl-6-methoxy-pyridin-4-yl)-[1,3,4]oxadiazol-2-yl]-2-ethyl-6-methyl-phenol (495 mg) as a white solid; LC-MS**: tR=0.91 min, [M+H]+=380.25; 1H NMR (D6-DMSO): δ 1.20 (t, J=7.5 Hz, 3H), 1.65-1.74 (m, 2H), 1.76-1.88 (m, 4H), 1.99-2.09 (m, 2H), 2.29 (s, 3H), 2.69 (q, J=7.5 Hz, 2H), 3.94 (s, 3H), 7.26 (d, J=1.0 Hz, 1H), 7.50 (d, J=0.8 Hz, 1H), 7.76 (d, J=2.0 Hz, 1H), 7.78 (d, J=2.0 Hz, 1H).
Workup
- customThe catalyst is removed by filtration
- concentrationthe filtrate is concentrated
- customdried
Sources & evidence
- ORD record
- ord-01f3c2897d674947b66cbdd3efd21046
- Source dataset
- uspto-grants-2015_09
- Patent number
- US09133179B2
Reaction notes
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