Author/Authors :
Bradford، نويسنده , , Tanya A. and Willis، نويسنده , , Anthony C. and White، نويسنده , , Jonathan M. and Herlt، نويسنده , , Anthony J. and Taylor، نويسنده , , Walter C. and Mander، نويسنده , , Lewis N.، نويسنده ,
Abstract :
The structures of four new alkaloids isolated from the bark of the rain forest trees Galbulimima belgraveana and Galbulimima baccata have been determined by a combination of NMR spectra and single crystal X-ray crystallography. Two of the alkaloids are simple oxygenated derivatives of himbacine, while the remaining two are based on a novel 7,19-cyclo-himbacine skeleton.
Keywords :
Galbulimima belgraveana , Alkaloids , Biosynthesis , Novel structures
