| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5279318 | Tetrahedron Letters | 2010 | 4 Pages |
Abstract
Two novel cyclic hexapeptides, named rubiyunnanins A (1) and B (2), were isolated from the roots of Rubia yunnanensis (Franch.) Diels. Their structures were elucidated extensively by spectroscopic analysis and theoretical computation. Possible biosynthetic pathways for RAs, 1, and 2 were proposed. Compound 2 showed moderate cytotoxicities against 11 cancer cell lines and inhibited nitric oxide (NO) production in LPS and IFN-γ-induced RAW 264.7 murine macrophages.
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Authors
Jun-Ting Fan, Yi-Shan Chen, Wen-Yan Xu, Liangcheng Du, Guang-Zhi Zeng, Yu-Mei Zhang, Jia Su, Yan Li, Ning-Hua Tan,