Yao xue xue bao = Acta pharmaceutica Sinica 2005-Jul
[Diterpenes constituents of Tripterygium wilfordii].
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OBJECTIVE
To study the chemical constituents of Tripterygium wilfordii Hook. F.
METHODS
Various column chromatographies with silica gel were used for the isolation and purification. The structures of compounds were established on the basis of its IR, MS, UV, 1H NMR, 13C NMR and HRMS, 1H-1H COSY, 1H-13C COSY and NOESY.
RESULTS
Four diterpenoids were isolated: 16-hydroxytriptolide (I), triptolidenol (II), tripdiolide (III), 2-epitripdiolide (IV).
CONCLUSIONS
Compound IV is a new diterpenoid.
