Three novel furospirostanol glycosides and a steroidal alkaloid glycoside from the bulbs of Fritillaria camtschatcensis (L.) Ker Gawl., and their cytotoxicity

Three novel steroidal glycosides (1–3) and a previously described steroidal alkaloid glycoside (4) have been isolated from the bulbs of Fritillaria camtschatcensis (L.) Ker Gawl. (Liliaceae). The s...