Ismail L D, el-Azizi M M, Khalifa T I, Stermitz F R
Department of Pharmacognosy, Al-Azhar University, Nasr City, Cairo, Egypt.
Phytochemistry. 1995 Aug;39(6):1391-3. doi: 10.1016/0031-9422(95)00172-4.
The new phenylethanoid glycosides 2-O-acetyl-3'''-O-methylverbascoside and 2,4"-di-O-acetyl-3'''-O-methylverbascoside were isolated and identified from Penstemon crandallii. The major iridoid glycoside was plantarenaloside and no aucubin type iridoids were found. This contrasted with a previous analysis of P. teucrioides, from the same Penstemon subsection, which was dominated by aucubin derivatives.
从克兰德尔氏钓钟柳中分离并鉴定出了新的苯乙醇苷类化合物2-O-乙酰基-3'''-O-甲基毛蕊花糖苷和2,4''-二-O-乙酰基-3'''-O-甲基毛蕊花糖苷。主要的环烯醚萜苷为plantarenaloside,未发现桃叶珊瑚苷型环烯醚萜。这与之前对同一钓钟柳亚组的特氏钓钟柳的分析形成对比,后者以桃叶珊瑚苷衍生物为主。