反应详情

温度

150 °C

A mixture of isomer (37B) of 5-[2-(3,8-diazabicyclo[3.2.1]oct-3-yl)-1-hydroxyethyl]-4-methyl-2-benzofuran-1(3H)-one (45 mg, 0.149 mmol) and 4-methyl-5-oxiran-2-yl-2-benzofuran-1(3H)-one (57 mg, 0.210 mmol) in 2 mL DMSO was heated under microwave condition (150° C.) for 1 hr. After cooling to rt., the mixture was diluted with water (50 mL), and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine and dried over Na2SO4, then concentrated. The residue was purified by prep-TLC (MeOH/DCM=1:15) and then separated by SFC chiral chromatography to obtain two separated isomers C and D of 5,5′-[3,8-diazabicyclo[3.2.1]octane-3,8-diylbis(1-hydroxyethane-2,1-diyl)]bis(4-methyl-2-benzofuran-1(3H)-one).

1. temperatureAfter cooling to rt
2. extractionextracted with EtOAc (3×50 mL)
3. washThe combined organic layers were washed with brine
4. dry with materialdried over Na2SO4
5. concentrationconcentrated
6. customThe residue was purified by prep-TLC (MeOH/DCM=1:15)
7. customseparated by SFC chiral chromatography