- Turkish Journal of Chemistry
- Vol: 27 Issue: 6
- 6-O-a-L-Rhamnopyranosylcatalpol Derivative Iridoids from Verbascum cilicicum
6-O-a-L-Rhamnopyranosylcatalpol Derivative Iridoids from Verbascum cilicicum
Authors : I. Irem Tatli, Zeliha Ş. Akdemir
Pages : 765-772
View : 8 | Download : 3
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :From the aerial parts of Verbascum cilicicum Boiss., 6 iridoid glycosides, namely catalpol (1), verbaspinoside [= 6-O-(2'' -O-trans-cinnamoyl)-a-L-rhamnopyranosylcatalpol] (2), 6-O-(3''-O-trans-cinna\-moyl)-a-L-rhamnopyranosylcatalpol (3), 6-O-(4''-O-trans-cinnamoyl)-a -L-rhamnopyranosylcatalpol (4), saccatoside [= 6-O-(2''-O-trans-p-coumaroyl)-a-L-rhamnopyranosylcatalpol] (5), and 6-O-(3''-O-trans-p-coumaroyl)-a-L-rhamnopyranosylcatalpol (6), were isolated. The structures of the compounds were elucidated by means of 1 and 2 dimensional (DQF-COSY, HMQC and HMBC) NMR techniques and LC-ESIMS.Keywords : Verbascum cilicicum, Scrophulariaceae, iridoid glycosides, catalpol (1), verbaspinoside (2), 6-O-(3' -O-trans-cinnamoyl)-a-L-rhamnopyranosylcatalpol (3), 6-O-(4'-O-trans-cinnamoyl)-a-L-rham-nopyranosylcatalpol (4), saccatoside (5), 6-O-(3'-O-tran