A recent article by Nakamura R. and colleagues has reported the effects of propolis from different geographical areas on mast cell degranulation [1]. As well as flavonoids, propolis is well known among general population for its anti-allergic properties [2,3]. Actually, propolis has plenty of biological and pharmacological properties and its mechanisms of action have been widely investigated in...

Ethyl acetate fraction column chromatographic analysis was used to isolate eleven compounds (numerically tagged 1–10) from Cassia occidentalis L. in this study. Two unique metabolites, including a neolignan compound designated as occidentalignan I (9) and flavonoidal glycoside, chrysin-7-O-α-L-rhamnopyranosyl (10), were identified, while silybin A (8) the first flavonolignan be isolated Fabacea...

Bu çalışmada 5,7-dihidroksiflavon (chrysin, chr) ve 4,4′-di-ter-bütil-2,2′-bipiridin (4,4’-dtbbpy) ligandları kullanılarak Cu(II) iyonunun yeni bir karışık ligand-bakır(II) koordinasyon bileşiği elde edildi. Sentezlenen bu bileşiğinin yapısı, elementel analiz, iletkenlik, manyetik süsseptibilite, kütle spektrometrisi Infrared (IR) spektroskopisi yöntemleriyle aydınlatıldı. Ayrıca TGA/DSC analiz...