Two new acylated drimane-type sesquiterpene glucosides from Petrorhagia saxifraga

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• 作者：Monica Scognamiglio ; Brigida D鈥橝brosca ; Valeria Severino ; Angela Chambery ; Pietro Monaco ; Antonio Fiorentino
• 关键词：Petrorhagia saxifraga ; Caryophyllaceae ; Drimane glucosides ; Spectroscopic analysis ; HRMS analysis
• 刊名：Phytochemistry Letters
• 出版年：February, 2014
• 年：2014
• 卷：7
• 期：Complete
• 页码：46-51
• 全文大小：709 K

文摘

Two new acylated drimane sesquiterpenoid glucosides, saxifragoside A and B, have been isolated from the methanol extract of Petrorhagia saxifraga, a perennial herbaceous plant typical of the Mediterranean vegetation. The structures of these compounds have been elucidated on the basis of extensive 2D NMR spectroscopic analyses, including COSY, TOCSY, NOESY, HSQC, CIGAR-HMBC, H2BC and HSQC-TOCSY, along with Q-TOF HRMS² analysis. As drimane glucosides have already been reported in other plants of Petrorhagia genus, they could represent a useful chemotaxonomic marker for this genus.