Isolation and Structure of Some Constituents of the Australian Medicinal Plant, Tinospora smilacina (“Snakevine”).
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The structures of a number of compounds isolated from the stems of Tinospora smilacina (known as ‘snakevine’) have been determined. The known clerodane-type compound columbin is a major component, and two new minor compounds incorporate a heavily oxygenated tetrahydrofuran ring in place of the furan ring of columbin. The lignan isolariciresinol is also shown to be a minor component, along with dihydrosyringenin. The traditional medicinal use of the vine, particularly in countering snake venom, may be associated primarily with the presence of columbin.
Australian Journal of Chemistry
Natural Products Chemistry