Browsing by Author "Yıldız, Yaşar"
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Diterpenes from Sideritis sipylea and S-dichotoma
Topçu, Gülaçtı; Gören, Ahmet C.; Kılıç, Turgut; Yıldız, Yaşar; Tümen, Gülendam (Scientific Technical Research Council Turkey-Tubitak, 2002)Two Sideritis species afforded eleven kaurene and one beyerene diterpenes. Structures of the compounds from Sidcritis sipylca were elucidated as linearol (1), 7-epicandicandiol (2), sideridiol (3), siderol (4), isolinearol ... -
Diterpenes from Sideritis trojana
Topçu, Gülaçtı; Gören, Ahmet C.; Kılıç, Turgut; Yıldız, Yaşar; Tümen, Gülendam (Taylor & Francis Ltd, 2002)Six known ent-kaurene, a new ent-kaurane and a new pimarane diterpenes were isolated from Sideritis trojana. The structures of new compounds were determined as ent-7alpha-15beta,16beta-epoxykaurane (1), and ent-2alpha-hy ... -
Phytochemical analysis of some Sideritis species of Turkey
Kılıç, Turgut; Yıldız, Yaşar; Gören, Ahmet C; Tümen, Gülendam; Topçu, Gülaçtı (Springer, 2003)Linearol, foliol, epicandicandiol, siderol and ent-7alpha,18-dihydroxy-15beta,16beta-epoxykaurane have been investigated for antibacterial activity test. Highest activity of epicandicandiol has been determined against E-coli.