Composition #2: Zhang, Bing-Jie., Yan, Ju-Ming., Wu, Zi-Kun., Liu, Ya-Ping., Bao, Mei-Fen., Cheng, Gui-Guang., Luo, Xiao-Dong., Cai, Xiang-Hai., Li, Yan. Alkaloids from Ochrosia borbonica. helvetica chimica acta, 2013, vol. 96, no. 12, p. 2288–2298. DOI: 10.1002/hlca.201300136.
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