New amino butenolides from the bulbs of Fritillaria unibracteata

作者:Liu, Juan; Peng, Cheng*; He, Cheng-Jun; Liu, Jian-Lin; He, Ya-Cong; Guo, Li; Zhou, Qin-Mei; Yang, Huai; Xiong, Liang
来源:Fitoterapia, 2014, 98: 53-58.
DOI:10.1016/j.fitote.2014.07.009

摘要

Five new amino gamma-butenolides, fritenolide A (1), B (2), C (3), D (4), and E (5), along with four known compounds, were isolated from the bulbs of Fritillaria unibracteata. Their structures were determined by spectroscopic analysis, including 1D NMR, 2D NMR, HRESIMS, HRESIMS/MS, IR, and CD techniques. All isolates were evaluated for the protective activity on injured hepatocytes and cytotoxic activity on human cancer cells in vitro. The unusual amino butenolides were isolated from the Liliaceae family for the first time.