^山本, 篤; 宮瀬, 敏男; 上野, 明; 前田, 利男 (1991-10-25). “Buddlejasaponins I-IV, four new oleanane-triterpene saponins from the aerial parts of Buddleja japonica Hemsl.”. Chemical & Pharmaceutical Bulletin39 (10): 2764-2766. doi:10.1248/cpb.39.2764. ISSN0009-2363. "Four new oleanane-type triterpene saponins, named buddlejasaponins I (1), II (2), III (3) and IV (4) were isolated from the aerial parts of Buddleja japonica HEMSL., together with a known saponin saikosaponin a (5). Their structures were elucidated on the basis of the chemical and spectroscopic studies. [新しいオレアナン型トリテルペン・サポニン4種が、既知のサポニン・サイコサポニン a (5) とともにフジウツギ B. japonicaHemsl. の地上部から単離された。それぞれブッドレア・サポニン I (1)、II (2)、III (3) および IV (4) と名付けられた。その構造の解明は、化学的研究と分光学的研究に基づく。]"
^Avila A., José Guillermo; Romo de Vivar, Alfonso (2002-11). “Triterpenoid saponins and other glycosides from Buddleja scordioides”. Biochemical Systematics and Ecology (Elsevier BV) 30 (10): 1003-1005. doi:10.1016/s0305-1978(02)00032-7. ISSN0305-1978. CRID1364233269026335744.
^Guo, Hongzhu; Koike, Kazuo; Li, Wei; Satou, Tadaaki; Guo, Dean; Nikaido, Tamotsu (2003-12-31). “Saponins from the Flower Buds of Buddleja officinalis”. Journal of Natural Products (American Chemical Society (ACS)) 67 (1): 10-13. doi:10.1021/np0300131. ISSN0163-3864. CRID1362544419479407488.