Regio- and stereocontrolled synthesis of novel steroidal isoxazolines: A new route to the formation of selectively modified steroid side chains

- Novel steroidal diastereomeric isoxazolines via nitrile oxide cycloadditions.
- Stereochemically unusual cycloaddition giving the same adducts for (Z)- and (E)-alkenes.
- Structural elucidation by NMR and X-ray analysis.