Solasonine(19121-58-5)

Extraction of aubergine: take the fine powder of aubergine fruit, reflux it with 2N hydrochloric acid solution for 2h, cool it, add 5N sodium hydroxide solution to make it alkaline, extract it with dichloromethane, dry the dichloromethane solution with anhydrous sodium sulfate, and concentrate it under reduced pressure, and point it on the centrifugal thin layer (4g, Chemicalbook 100-200 mesh silica gel G and 50g<0.08mm silica gel G, add 150ml ethanol to make the plate, the thickness of the thin layer is 0.3mm), and conduct gradient elution with pentane containing different amounts of ethanol, Take the eluent and determine it according to the chromatographic conditions of this method.