Phytochemical investigation of the MeOH extract obtained from the aerial parts of the annual weed Euphorbia exigua L. resulted in the isolation of two novel (1, 2) and one known (3) jatrophane diterpenes. Their structures were established by extensive 1D- and 2D-NMR spectroscopy and HR-ESI-MS. The isolated compounds were evaluated for multidrug resistance (MDR) reversing activity on human MDR gene-transfected L5178 mouse lymphoma cells; and all three compounds were found to modulate the intracellular drug accumulation.
机构:
Quaid e Millath Govt Arts Coll, Dept Bot, Madras 600002, Tamil Nadu, IndiaTaramani Univ Madras, Dr AL Mudaliar Post Grad Inst Basic Med Sci, Dept Microbiol, Madras 600113, Tamil Nadu, India
Ramesh, K. Vijaya
Padmavathi, K.
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Taramani Univ Madras, Dr AL Mudaliar Post Grad Inst Basic Med Sci, Dept Microbiol, Madras 600113, Tamil Nadu, IndiaTaramani Univ Madras, Dr AL Mudaliar Post Grad Inst Basic Med Sci, Dept Microbiol, Madras 600113, Tamil Nadu, India
机构:
Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Mat Med, State Key Lab Drug Res, Shanghai 201203, Peoples R ChinaChinese Acad Sci, Shanghai Inst Biol Sci, Inst Mat Med, State Key Lab Drug Res, Shanghai 201203, Peoples R China
Zhang, Wen
Guo, Yue-Wei
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Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Mat Med, State Key Lab Drug Res, Shanghai 201203, Peoples R ChinaChinese Acad Sci, Shanghai Inst Biol Sci, Inst Mat Med, State Key Lab Drug Res, Shanghai 201203, Peoples R China