Isolation and identification of a new neo-clerodane diterpenoid from Teucrium chamaedrys L.     
Yazarlar (7)
Mahfuz Elmastaş
Sağlık Bilimleri Üniversitesi, Türkiye
Prof. Dr. Ramazan ERENLER Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Beşir İsnaç
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Hüseyin Akşit
Erzincan Binali Yıldırım Üniversitesi, Türkiye
Özkan Şen
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Doç. Dr. Nusret GENÇ Tokat Gaziosmanpaşa Üniversitesi, Türkiye
İbrahim Demirtaş
Çankırı Karatekin Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Natural Product Research
Dergi ISSN 1478-6419 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 07-2015
Cilt No 30
Sayı 3
Sayfalar 299 / 304
DOI Numarası 10.1080/14786419.2015.1057583
Makale Linki http://www.tandfonline.com/doi/full/10.1080/14786419.2015.1057583
Özet
Teucrium chamaedrys L. is an aromatic and medicinal plant used as traditional medicine. Aerial parts of the plant material were dried and extracted with hexane–dichloromethane (extract 1), ethyl acetate–dichloromethane (extract 2) and methanol–dichloromethane (extract 3) in a ratio of 1:1 at rt successively. The solvents were evaporated to give crude extracts. Extract 1 was suspended in water at 60°C then partitioned successively with hexane and ethyl acetate to give hexane and ethyl acetate portions. After the column chromatography (silica gel) of ethyl acetate extract, one new and four known compounds were isolated. The new compound was named as 1(12S,18R)-15,16-epoxy-2β,6β-dihydroxy-neo-cleroda-13(16),14-dien-20,l2-olide-l8,l9-hemiacetal (teuchamaedryn D) (4). The known compounds were teucrin A (1), dihydroteugin (2), teucroxide (3), syspirensin A (5). The chromatographic methods were also applied for extract 3 to isolate verbascoside (6) and teucrioside (7). The structure of isolated compounds was elucidated by spectroscopic methods including LC-TOF/MS, 1D NMR and 2D NMR.
Anahtar Kelimeler
neo-clerodane diterpenoid | teuchamaedryn D | Teucrium chamaedrys L