
Keywords: Spectroscopy اثر Overhauser هسته ای; Steroids; Oxazoline; Oxazolidine; Heterocycles; Antiproliferative activity; COSY; Correlation Spectroscopy; DEPT; Distortionless Enhancement by Polarization Transfer; EI; Electronic Impact; ESI; ElectroSpray Ionization; FAB; Fast Atom Bombardment; FDA; Fo