目的 研究楓楊Pterocarya stenoptera樹皮的化學成分。方法 采用硅膠柱色譜、ODS、Sephadex LH-20、HPLC及重結晶等分離純化手段對楓楊樹皮90%乙醇提取物的氯仿和醋酸乙酯萃取部位進行分離純化，并根據理化性質和波譜數據鑒定化合物的結構。結果 從楓楊樹皮中分離得到14個化合物，分別鑒定為算盤子酮（1）、羽扇豆-1β, 3β-二醇（2）、烏蘇酸（3）、白樺脂酸（4）、2α, 3β, 19α-trihydroxyurs-12-en-28-O-β-D-glucopyranoside（5）、(4S)-4, 8-二羥基-1-四氫萘酮（6）、4-甲氧基-5-羥基-1-四氫萘酮（7）、(4S)-4-羥基-1-四氫萘酮（8）、楊梅苷（9）、30-norlupan-28-oic acid（10）、楊梅素（11）、槲皮素-3-O-(2″-沒食子?；?-鼠李糖苷（12）、齊墩果酸（13）和3, 3′-二甲氧基鞣花酸-4′-O-β-D-吡喃木糖苷（14）。結論 化合物1～14為首次從楓楊中分離得到，其中化合物5、7～14為首次從楓楊屬植物中分離得到。

Objective To study the chemical constituents in the barks of Pterocarya stenoptera. Methods The chemical constituents in chloroform and ethyl acetate fractions of 90% ethanol extract from the barks of P. stenoptera were isolated and purified by column chromatography over silica gel, ODS, Sephadex LH-20 columns, preparative HPLC, and recrystallization. The structures of the isolated compounds were identified on the basis of physicochemical properties and spectral data analyses. Results Fourteen compounds were obtained and identified as glochidone (1), lup-20(29)-en-1β, 3β-diol (2), ursolic acid (3), betulinic acid (4), 2α, 3β, 19α-trihydroxyurs-12-en-28-O-β-D-glucopyranoside (5), (4S)-4, 8-dihydroxy-1-tetralone (6), 5-hydroxy-4-methoxy-α-tetralone (7), (4S)-4-hydroxy-1-tetralone (8), myricitrin (9), 30-norlupan-28-oic acid (10), myrictin (11), quercetin-3-O-2″-galloyl-rhamnoside (12), oleanolic acid (13), and 3, 3′-di-O-methyl ellagic acid-4′-O-β-D-xylopyranoside (14). Conclusion Compounds 1—14 are isolated from the plant for the first time, and compounds 5 and 7—14 are obtained from the plants in Pterocarya Kunth. for the first time.

廣東省自然科學基金團隊項目（8351063201000003）；暨南大學211工程項目