Triethylamine → 2,2-Dimethyl-5-oxo-5-(3-{4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenoxy}-piperidin-1-yl)-pentanoic acid

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Reaktionsschritte

2-Phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid [4-(piperidin-3-yloxy)-phenyl]-amide (44.1 mg, 0.102 mmol), 3,3-dimethyl-dihydro-pyran-2,6-dione (17.5 mg, 0.122 mmol) and triethylamine (28.5 uL, 0.204 mmol) in 1 mL DMSO were treated as above. The crude product was purified by flash chromatography to yield 2,2-dimethyl-5-oxo-5-(3-{4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenoxy}-piperidin-1-yl)-pentanoic acid as a white solid (33 mg, 56%). ES-MS calcd for C29H30F3N3O6 (m/e) 573.57, obsd 574 (M+H).

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