Design, Synthesis, and Biological Evaluation of Novel PDE-4 Inhibitors
- Corresponding author: Li Jiaming, lijiaming2004@sina.com
Citation:
Gao Sufan, Xu Qinlong, Li Jiaming, Chu Zhaoxing, He Guangwei, Lin Gaofeng, Zhu Zhenwei, Cui Yong, Mo Jiajia, Guo Jing, Zhao Yan. Design, Synthesis, and Biological Evaluation of Novel PDE-4 Inhibitors[J]. Chinese Journal of Organic Chemistry,
;2018, 38(2): 478-485.
doi:
10.6023/cjoc201705042
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M: (metal binding pocket), Q: (hydrophobic clamp pocket), S:(solvent filled side pocket)
Reagents and conditions: (ⅰ) K2CO3, DMF, 80~120 ℃; (ⅱ) B2pin2, Pd(dppf)Cl2, AcOK, 100~105 ℃, 1 h; (ⅲ) NaBH4, HCl, THF/CH3OH, 0 ℃
Reagents and conditions:(ⅰ) Br2, CHCl3, -10 ℃, 3 h; (ⅱ) DMF-DMA, 80 ℃, 1h; (ⅲ) pyridine, I2, CHCl3, r.t.; (ⅳ) NBS, CCl4, 80 ℃; (ⅴ) AcONa, DMF, 80 ℃; (ⅵ) Na2CO3, Pd/C, DMF, H2O, 45~50 ℃, 5 h; (ⅶ) B2pin2, AcOK, Pd(dppf)Cl2, dioxane, 100 ℃; (ⅷ) NaOH, MeOH, 3 mol/L HCl, r.t.
Reagents and conditions: (ⅰ) KI, I2, NH3·H2O, r.t.; (ⅱ) Cs2CO3, toluene, 100 ℃; (ⅲ) NBS, BPO, CCl4, 80 ℃; (ⅳ) AcONa, DMF, 80 ℃; (ⅴ) B2pin2, AcOK, Pd(dppf)Cl2, dioxane, 100 ℃; (ⅵ) NaOH, MeOH, 3 mol/L HCl, r.t.
(a) the binding mode of compound 4a with PDE-4; (b) the binding site of compound 4a in PED-4