反应详情

6,6-Dimethyl-11-oxo-8-(piperidin-4-ylmethoxy)-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile hydrochloric acid salt (Compound A7-25, 30 mg, 0.075 mmol) and oxetan-3-one (38 mg, 7 eq.) were dissolved in acetic acid (0.2 ml), THF (1 ml) and methanol (1 ml), added with sodium cyanoborohydride (33 mg, 7 eq.) at room temperature, and stirred overnight. The reaction solution was added with water, and then extracted with ethyl acetate. The solution was dried over sodium sulfate and the solvent was removed under vacuum and the resulting residues were purified by preparative TLC (chloroform: 2 N ammonia methanol=9:1) to obtain the target compound (15 mg).

1. extractionextracted with ethyl acetate
2. dry with materialThe solution was dried over sodium sulfate
3. customthe solvent was removed under vacuum
4. customthe resulting residues were purified by preparative TLC (chloroform: 2 N ammonia methanol=9:1)