反应详情

温度

40 °C

Compound (22) (180 mg, 0.387 mmol) was dissolved in methanol (8 ml), sodium methoxide (922 mg, 9.67 mmols) was added to the solution, and the mixture was reacted with stirring at 40° C. TLC revealed 4.5 hours later that the reaction mixture collected into a spot, and the mixture was neutralized with a cation-exchange resin IR-120 (+), followed by filtration and concentration. The residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:1), giving Compound (23) (in an amount of 105.3 mg, 91.6% in yield).

1. customthe mixture was reacted
2. customcollected into a spot
3. filtrationfollowed by filtration and concentration
4. customThe residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:1)