Complete 13C NMR assignments for ent-kaurane diterpenoids from Sideritis species |
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| Authors: | Halfon Belkıs Gören Ahmet Ceyhan Ertaş Abdülselam Topçu Gülaçtı |
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| Affiliation: | 1. Department of Chemistry, Bo?azi?i University, 34342 Bebek, Istanbul, Turkey;2. TUBITAK UME, Chemistry Group Laboratories, P.O. Box: 54, 41470‐Gebze‐Kocaeli, Türkiye;3. Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, 34116 Istanbul, Turkey;4. Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey |
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| Abstract: | In this work, the detailed NMR studies and full (13)C NMR assignments for five diterpenoids isolated from Sideritis caesarea and Sideritis athoa are described. The assignments are based on a combination of 1D and 2D NMR techniques including (1)H, (13)C, (1)H-(1)H COSY, gHSQC [(1)J(C,H)] and gHMBCδ(C) [(n)J(C,H)(n=2 and 3)] and NOESY experiments. |
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| Keywords: | 13C NMR Sideritis species ent‐kaurane diterpenoids ent‐3β,7α‐dihydroxy‐kaur‐16‐ene |
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