Synthesis and Anti-HBV Evaluation of 5-Halogenated 2'-Deoxy-2'-β-fluoro-4'-azido Pyrimidine Nucleosides
- Corresponding author: Yu Wenquan, wenquan_yu@zzu.edu.cn Chang Junbiao, changjunbiao@zzu.edu.cn
Citation:
Guo Meichao, Kang Jinfeng, Hou Jiao, Zhang Qianqian, Yu Wenquan, Chang Junbiao. Synthesis and Anti-HBV Evaluation of 5-Halogenated 2'-Deoxy-2'-β-fluoro-4'-azido Pyrimidine Nucleosides[J]. Chinese Journal of Organic Chemistry,
;2020, 40(1): 221-225.
doi:
10.6023/cjoc201907054
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Reagents and conditions: (a) LiCl, CAN, MeCN/AcOH (V:V=1:1), 80 ℃, 77%; (b) LiBr, CAN, MeCN, 80 ℃, 64%; (c) I2, CAN, MeCN, 80 ℃, 90%; (d) 1, 2, 4-triazole, Py., POCl3, CH2Cl2, 0 ℃~reflux; (e) NH3•H2O, THF, r.t.; (f) cyclopropylamine, DIPEA, CH2Cl2, r.t.; (g) sat. NH3 in MeOH, r.t., 55% ~ 81% from 2.