A new sesquiterpenoid from Sclerorhachis platyrachis (Boiss.) Podlech ex Rech.f

作者：Habibi Zohreh^*; Kheyrabadi Rasool; Ghasemi Sabrieh; Yousefi Maryam; Ng Seik Weng

来源：Phytochemistry Letters, 2012, 5(4): 705-707.

DOI：10.1016/j.phytol.2012.07.002

• Sclerorhachis platyrachis
• Eudesmane
• Sesquiterpenoid
• Flavonoid

A new eudesmane-type sesquiterpenoid together with two known flavonoids were isolated from the chloroform extract of the aerial part of Sclerorhachis platyrachis. The structure of the new compound was deduced from its comprehensive spectroscopic analysis including IR, EI-MS, H-1 NMR, C-13 NMR, DEPT, COSY, HMBC and HMQC and was shown to be 4R(*)-hydroxy-6S(*)-tigloyloxyeudesma-7S(*)-11 (13)-en-12-oic acid (1). Finally, the structure of the new compound was unambiguously confirmed by single-crystal X-ray analysis. The structure of known compounds 2 and 3 were identified by comparison of their spectral data with those reported in the literature.

• 出版日期2012-12