Natural product letters 2002-Apr
New triterpenoids from the orchids Scaphyglottis livida and Nidema boothii.
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Mücərrəd
Two new triterpenoids, nidemin (1), a modified lanostane, and 9,19-cyclolanosta-24,24-dimethyl-25-en-3beta-yl trans-p-hydroxycinnamate (2) have been isolated from the orchids Nidema boothii and Scaphyglottis livida, respectively. The isolates were characterized by spectral methods. The structure of nidemin (1) was unambiguously confirmed by X-ray analysis.