Ethoxyacetic acid → HCID 22170710, compound
Reaction equation
CCN=C=NCCCN(C)C.[CH2:12]([O:14][CH2:15][C:16]([OH:18])=O)[CH3:13].Br.[NH2:20][C:21]1[S:22][C:23]([Br:26])=[CH:24][N:25]=1.C(N(C(C)C)CC)(C)C>C(Cl)Cl>[Br:26][C:23]1[S:22][C:21]([NH:20][C:16](=[O:18])[CH2:15][O:14][CH2:12][CH3:13])=[N:25][CH:24]=1Participants
Procedure
EDCI (0.53 g, 2.78 mmol) was added to a solution of ethoxyacetic acid (0.29 g, 2.78 mmol) in CH2Cl2 (5 ml) under ice-cooling. After stirring for 1 h, a solution of 2-amino-5-bromothiazole hydrobromide (0.60 g, 2.31 mmol) and diisopropylethylamine (0.40 ml, 2.34 mmol) in CH2Cl2 (5 ml) was added dropwise, and the entire mixture was kept at 0° C. for 1 h, then at room temperature overnight. The solution was evaporated and the residue partitioned between ethyl acetate and water. The ethyl acetate layer was further washed with water, 5% citric acid, water, saturated sodium bicarbonate, and water. Drying over sodium sulfate and evaporation gave a solid which was triturated with isopropyl ether to give the title compound as a beige solid (0.43 g; 70%)
Workup
- temperaturecooling
- waitthe entire mixture was kept at 0° C. for 1 h
- customat room temperature
- customovernight
- customThe solution was evaporated
- customthe residue partitioned between ethyl acetate and water
- washThe ethyl acetate layer was further washed with water, 5% citric acid, water, saturated sodium bicarbonate, and water
- dry with materialDrying over sodium sulfate and evaporation
- customgave a solid which
- customwas triturated with isopropyl ether
Sources & evidence
- ORD record
- ord-8b129707d220460d9567528f7249942b
- Source dataset
- uspto-grants-2006_05
- Patent number
- US07037929B1
Reaction notes
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