Five new limonoids isolated from Walsura robusta

oleh: Li Hou, Cui-Xuan Mei, Chun-Mao Yuan, Gui-Hua Tang, Duo-Zhi Chen, Qing Zhao, Hong-Ping He, Ming-Ming Cao, Xiao-Jiang Hao

Format: Article
Diterbitkan: SpringerOpen 2023-02-01

Deskripsi

Abstract Five new toosendanin limonoids with highly oxidative furan ring walsurobustones A-D (1–4), and one new furan ring degraded limonoid walsurobustone E (5) together with one known compound toonapubesic acid B (6) were isolated from the leaves of Walsura robusta. Their structures were elucidated by NMR and MS data. Especially, the absolute configuration of toonapubesic acid B (6) was confirmed by X-ray diffraction study. Compounds 1–6 exhibited good cytotoxicity against the cancer cell lines HL-60, SMMC-7721, A-549, MCF-7, and SW480.