Extraction and separation method of furanester alkaloid in purslane and application of furanester alkaloid

The invention discloses a novel furan ester alkaloid compound extracted, separated and identified from purslane and an extraction and separation method thereof, and belongs to the field of extraction and separation of traditional Chinese medicines. The molecular formula of the compound is C7H9NO3, and the compound is identified as (5-aminofuran-2-yl) meta acetate, and is named as oleracone N. The invention further discloses a preparation method of the compound. The extraction and separation method disclosed by the invention comprises the following steps: sequentially carrying out separation, purification and preparation by adopting ethanol reflux extraction, ethyl acetate extraction, polyamide column chromatography, silica gel column chromatography, ODS medium-pressure column chromatography, Sephadex LH-20 and a high performance liquid chromatograph. The structure is determined by mass spectrum, carbon spectrum, hydrogen spectrum and two-dimensional nuclear magnetic spectrum analysis methods. The novel compou