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- Yu, Jin-Hai; Liu, Qun-Fang; Sheng, Li; Wang, Guo-Cai; Li, Jia; Yue, Jian-Min
- Organic letters 2016 v.18 no.3 pp. 444-447
- Cipadessa baccifera, etc ; X-ray diffraction; chemical reactions; chemical structure; limonoids; protein-tyrosine-phosphatase; spectral analysis; Show all 7 Subjects
- ... Four limonoids, cipacinoids A–D (1–4), with spirocyclic skeletons were isolated from Cipadessa cinerascens. It is particularly notable that compounds 1–3 had a 17S-configuration for the first time in the limonoid family. Their structures with absolute configurations were assigned by spectroscopic data, X-ray crystallography, and CD analysis. Compound 1 showed moderate protein tyrosine phosphatase ...