反应详情

To a mixture of 0.24 g of 1-(6-chloro-3-pyridylmethyl)-3,3-dimethyl-2-nitroguanidine (Compound No. 6) and 6 ml of dry tetrahydrofuran (THF) was added 0.045 g of 60% sodium hydride (in mineral oil) at room temperature, followed by stirring for 30 minutes. A solution of 0.16 g of iodomethane in 1 ml of THF was added to the reaction mixture and allowed to react for 3 days. After adding 0.1 ml of acetic acid, the mixture was filtered to remove insoluble materials and the filtrate was concentrated. The residue was purified by a column chromatography [developing solvent: dichloromethanemethanol (20:1)] to obtain 0.17 g of 1-(6-chloro-3-pyridylmethyl)-1,3,3-trimethyl-2-nitroguanidine (Compound No. 14) as a white solid.

1. customto react for 3 days
2. filtrationthe mixture was filtered
3. customto remove insoluble materials
4. concentrationthe filtrate was concentrated
5. customThe residue was purified by a column chromatography [developing solvent: dichloromethanemethanol (20:1)]