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Recent in vitro studies showed that sesquiterpene coumarins (SCs) can be used as chemosensitizers. In this study, 14 SCs were isolated and purified from roots of four Ferula species and their structures were elucidated by spectroscopic methods. The purified SCs were evaluated for multidrug resistance (MDR) reversal properties in A2780/RCIS cells (cisplatin‐resistant derivatives of the human ovarian...
The phytochemical investigation of Digitalis trojana led to the isolation of two cardiac glycosides (1, 2), one pregnane glycoside (3), three furostanol type saponins (4–6), along with three cleroindicins (7–9), four phenylethanoid glycosides (10–13), two flavonoids (14, 15) and two phenolic acid derivatives (16, 17). The structure elucidation of the isolates was carried out by NMR experiments as...
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