反应详情

To a solution of 1.7 g 1-[5-(5-Chloro-thiophen-2-yl)-isoxazol-3-ylmethyl]-1H-pyrazole-3,5-dicarboxylic acid dimethyl ester in 10 ml water/THF 1:1, 4 ml of a 1M aqueous NaOH were added at RT and the mixture was stirred for 3 h with LCMS reaction control. Then the reaction mixture was acidified to pH 3 with half concentrated HCl and extracted with DCM (3×50 ml). The organic phase was dried over MgSO4, filtered and the solvent removed under reduced pressure. The residue was subjected to the next reaction step without further purification.

1. extractionextracted with DCM (3×50 ml)
2. dry with materialThe organic phase was dried over MgSO4
3. filtrationfiltered
4. customthe solvent removed under reduced pressure
5. customThe residue was subjected to the next reaction step without further purification