Some novel asymmetry steroidal phosphates, phosphorothioates, phosphoroselenoates,
and phosphoramidates were synthesized by oxidation or conjugation with amines using
the Atherton-Todd reaction. The structures were confirmed by 1H NMR, 31P NMR, and ESI-MS spectroscopy.
steroidal bioconjugate - AZT - phospholipid - phosphoramidate