Now showing items 1-5 of 5

    • Chemical Investigation and Bioactivity Screening of Salvia cassia Extracts 

      Halfon, Belkis; Cetin, Ozlem; Kokdil, Gamze; TOPÇU, GÜLAÇTI (2019-03-01)
      In this study the antioxidant and anticholinesterase activities of the crude ethanol extract, as well as the dichloromethane and water extracts obtained from partitioning of the crude ethanol extract, of the plant Salvia ...
    • Complete C-13 NMR assignments for ent-kaurane diterpenoids from Sideritis species 

      Halfon, Belkis; GOREN, AHMET CEYHAN; Ertas, Abdulselam; Topcu, GÜLAÇTI (2011-05-01)
      In this work, the detailed NMR studies and full C-13 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 ...
    • Di-, and Triterpenoids Isolation and LC-MS Analysis of Salvia marashica Extracts with Bioactivity Studies 

      Toraman, Gulbahar O. Alim; Aydin, Sibel Kiran; Ertas, Abdulselam; Boga, Mehmet; EROL, EBRU; Saygi, Tuba Kusman; Halfon, Belkis; TOPÇU, GÜLAÇTI (2021-11-01)
      In this study, dichloromethane, acetone, and methanol extracts of the aerial parts of the Salvia marashica plant which is an endemic species to Anatolia, were investigated. The total phenolic amounts of these extracts were ...
    • Ent-kaurane diterpenoids isolated from Sideritis congesta 

      Topcu, GÜLAÇTI; Ertas, Abdulselam; Ozturk, Mehmet; Dincel, Demet; Kilic, Turgut; Halfon, Belkis (2011-12-01)
      A new ent-kaurane diterpenoid, together with eight known ent-kauranes, were isolated from the petroleum ether and acetone extracts of the whole plant of Sideritis congesta P. H. Davis & Hub.-Mor. and their structures were ...
    • Flavonoid constituents of Sideritis caesarea 

      Halfon, Belkis; Ciftci, Ece; Topcu, GÜLAÇTI (2013-01-01)
      The acetone extract of the aerial parts of Sideritis caesarea Duman, Aytac & Baser (Lamiaceae) afforded the flavonoids penduletin (1) and apigenin (2) and 6 glycosylated flavonoids, 4--O-methyl-isoscutellarein-7-O-[6 ...