反应详情

A solution of 3-methylene-1-phenylazolidine-2,5-dione (250 mg, 1.33 mmol) and 1-(2-methylbenzothiazol-5-yloxy)-3-piperazin-1-ylpropan-2-ol (415 mg, 1.35 mmol) in AcOH (10 mL, glacial) was stirred 14 hours at 50° C. Concentrated in the Savant™ and residue taken up in EtOAc and washed with NaHCO3 (sat. aq. soln.), H2O and brine, dried over MgSO4, filtered and concentrated. Purification via flash column chromatography (gradient 5 to 10% MeOH/EtOAc) afforded 3-({4-[(2R)-2-hydroxy-3-(2-methylbenzothiazol-5-yloxy)propyl]piperazinyl}methyl)-1-phenylazolidine-2,5-dione.

1. concentrationConcentrated in the Savant™ and residue
2. washwashed with NaHCO3 (sat. aq. soln.), H2O and brine
3. dry with materialdried over MgSO4
4. filtrationfiltered
5. concentrationconcentrated
6. customPurification via flash column chromatography (gradient 5 to 10% MeOH/EtOAc)