反应详情

A suspension of alendronate sodium trihydrate 1.0 g (3.08 mmol) in aqueous ethanol (10 ml of ethanol+1.9 ml of water) was boiled at reflux with stirring for 15 hrs. After cooling to ambient temperature the solid was filtered, washed with absolute ethanol and ether, and dried overnight in a vacuum oven (10-15 mm Hg, ambient temperature) to give 0.9 g of alendronate sodium, containing crystal form G.

1. temperatureat reflux
2. filtrationwas filtered
3. washwashed with absolute ethanol and ether
4. customdried overnight in a vacuum oven (10-15 mm Hg, ambient temperature)