反应详情

To a solution of 2-chloro-5-phenyl-thiophene-3-carboxylic acid (1 eq.) in DCM (1 mL/100 mg SM) was added EDC (1.5 eq.). This mixture was stirred at room temperature for 5 minutes and then [1,4]oxazepane (1.2 eq.) was added and the mixture was allowed to stir for 18 hours. Water (1 mL/100 mg SM) was then added and the organic layer separated, dried and evaporated to give the crude product which was purified by column chromatography (EtOAc/iso-hexane). LCMS m/z 322 [M+H]+ R.T.=3.34 mins (Analytical Method 3).

1. stirringto stir for 18 hours
2. customthe organic layer separated
3. customdried
4. customevaporated