反应详情

温度

0 °C

46 mg of compound (d) prepared by the above Step 3 was dissolved in methanol solution (0.138 mM) and then 1.7 M methanolic suspension solution containing NH2OK (0.122 ml, 0.207 mM) was added thereto at 0° C. and the resulting mixture was stirred for 3 hrs at room temperature. The resulting mixture was neutralized with 0.02 ml of acetic acid, diluted with 10 ml of ethyl acetate solution, filtered and concentrated in vacuo. The resulting compound was purified by column chromatography on Silica gel with methanol/chloroform (1:10) solvent mixture as an eluant to give 32 mg of the title compound (e1) (yield: 73%).

1. additionwas added
2. filtrationfiltered
3. concentrationconcentrated in vacuo
4. customThe resulting compound was purified by column chromatography on Silica gel with methanol/chloroform (1:10) solvent mixture as an eluant