Abstract
The symmetric phosphate, phosphonothioate, and phosphonoselenoate derivatives of AZT and D4T were synthesized in an expeditious way and high yields. The structures of these compounds were confirmed by the NMR and ESI-MS methods.
Acknowledgment
We are grateful to the NSFC (No. 20132020, No. 20175026, and No. 20172033), the Ministry of Science and Technology, the Chinese Ministry of Education and Tsinghua University for financial support.