J. Braz. Chem. Soc. vol.12 número4

669 Cornoside and other constituents from the latex of Parahancornia amapa (Hub.) Ducke (Apocynaceae) a medicinal plant in Northern

Ledeb., Fabaceae, collected in Tuva Republic (Russian Federation) resulted in the isolation of sixteen compounds identified as β-sitosterol, β-sitosterol-3- O

3 - Influence of the Liebermann-Burchard reagent on total phytosterol content (TPC g%) calculated the standard ( β -sitosterol) for both the drug and herbal extracts from roots of

Three new natural cyclopentenedione derivatives (1-3) and the known coumarin xanthyletin (4) were isolated from the roots of Piper carniconnectivum.. The structures were established

The known sterols, β -sitosterol glucoside, its acetyl derivative, and lupeol were identified by spectral data analysis and comparison with literature

The present study describes the structure elucidation of the new β -lapachone type naphthoquinone isolated from the roots of Distictella elongata.. Root

Two uncommon compounds, a meroterpene naphthoquinoid (cordiaquinone P) and a new lignan derivative, were isolated from the hexane extract of roots of Cordia leucocephala Moric..

The phytochemical study of extracts led to isolation and the identification of 16 known compounds, including: steroids: campesterol, stigmasterol and β -sitosterol, diterpenes: ent