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目的：对新种太白木（ＡｒａｌｉａｔａｉｂａｉｅｎｓｉｓＺ．Ｚ．ＷａｎｇｅｔＨ．Ｃ．Ｚｈｅｎｇ）的化学成分进行研究。方法：利用溶剂提取和硅胶柱层析进行分离，根据化合物理化性质和光谱数据鉴定其结构。结果：得到３个化合物，分别确定为齐墩果酸（ｏｌｅａｎｏｌｉｃａｃｉｄ，Ⅰ），去葡萄糖竹节参皂苷Ⅳa（２８－ｄｅｓｇｌｕｃｏｓｙｌ－ｃｈｉｋｕｓｅｔｓｕｓａｐｏｎｉｎⅣａ，Ⅱ）和竹节参皂苷Ⅰｂ（ｃｈｉｋｕｓｅｔｓｕｔｓａｐｏｎｉｎⅠｂ，Ⅲ）。结论：３个化合物均为首次从该植物中分得。
Objective: To study the chemical constituents of the new species, Araliataibaiensis Z.Z. Wanget H.C. Zheng. Methods: Solvent extraction and silica gel column chromatography were used for separation. Their structures were identified according to their physicochemical properties and spectral data. RESULTS: Three compounds were obtained, which were identified as oleanolic acid (I), deglucosaccharoside IVa (28-desglucosyl-chikusetsusaponin IVa, II) and bamboo ginsenoside Ib (chikusetsutsaponin Ib, III). Conclusion: All three compounds were isolated from the plant for the first time.