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Walnut pulling (Juglans Mandshurica Maxim . ) Juglandaceae walnut species , deciduous tree , distributed in Northeast China , North China , Hebei , Henan , East scattered . Qinglongyi (Cortex Juglans Mandshuricae) the Manchurian walnut unripe fruit epicarp , after many years of clinical observation and application , found to have anti-cancer , anti-inflammatory painkillers , such as the role of . But rarely reported on its effective component and the chemical composition . Predecessors walnut pulling the main chemical components and pharmacological studies on the basis of the chemical composition of the Qinglongyi further study . The chemical composition Qinglongyi Extraction and structure identification . Experiment using the chloroform will the dry extract an aqueous solution of 95 % alcohol Qinglongyi extraction , the chloroform part and the water part with AB-8 macroporous resin , silica gel column chromatography method for separation , five compounds . Structure according to their physicochemical properties and spectroscopic ( 1 H-NMR, 13 C-NMR, MS, IR , etc.) parsing of the data , to determine the five compounds . positive nonacosanol (nonacosyl alcohol), being an thirty-one and alkanol (hentriacontanol alcohol), n - dodecanol ( dotriacontane aLCOHOL ) , β - sitosterol alcohol (β-sitosterol) and glucose ( glucose) . Which is 30 alcohol (hentriacontanol alcohol), n - dodecanol (dotriacontane alcohol) first isolated in Qinglongyi , get . In this paper, the study of the chemical composition of the Qinglongyi to expand drug source , adequate and reasonable development and utilization Qinglongyi resources to provide the scientific basis .
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