Triazole alcohol derivatives, and preparation method and application thereof
A triazole alcohol and pyrazole technology, applied in the field of pharmaceutical compounds, can solve the problems of easy drug resistance, narrow antibacterial spectrum, and inability to meet the needs of treatment, etc.
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Embodiment 1
[0095] Embodiment 1: the synthesis of compound 8
[0096]
[0097] Step 1: Dissolve compound 1 (50mmol) and 4-iodopyrazole (compound 2, 50mmol) in DMF (150mL), add potassium carbonate (100mmol), react at 80°C for 4 hours, monitor the reaction by TLC, when After the reaction was complete, the system was cooled to room temperature, poured into ice water, stirred for 1 hour, and the precipitated solid was filtered and vacuum-dried at 50° C. to obtain compound 3 (15.5 g, yellow solid, yield 72%). 1 H NMR (300MHz, DMSO-d 6 )δ8.31(s,1H),7.76(d,J=4.3Hz,2H),7.41(s,1H),7.23-7.15(m,2H),6.91-6.86(m,1H),6.29(s ,1H),4.74-4.44(m,4H).
[0098]
[0099] Step 2: Dissolve compound 3 (40mmol) and methyl 4-ethynylbenzoate (compound 6, 40mmol) in NMP (140mL), add PdCl 2 (PPh 3 ) 2 (5%mmol), CuI (5%mmol) and DIEA (200mmol), under nitrogen protection, reacted for 6 hours at 60°C, TLC monitored the reaction, after the reaction was complete, poured into ice water, then extracted with ethyl ...
Embodiment 2
[0102] Embodiment 2: the synthesis of compound 10a
[0103]
[0104] Steps: Dissolve compound 8 (1mmol) and 9a (1mmol) in DMF (5mL), add PyBOP (1.1mmol) and DIEA (2mmol), react until complete at 50°C, pour into water, and then extract with ethyl acetate 3 times, the organic phase was washed twice with saturated aqueous sodium chloride solution, dried with anhydrous sodium sulfate, concentrated using a rotary evaporator, and purified by column chromatography to obtain the target product 10a.
Embodiment 3
[0105] Embodiment 3: the synthesis of compound 10b
[0106]
[0107] Steps: Dissolve compound 8 (1mmol) and 9b (1mmol) in DMF (5mL), add PyBOP (1.1mmol) and DIEA (2mmol), react until complete at 50°C, pour into water, and then extract with ethyl acetate 3 times, the organic phase was washed twice with saturated aqueous sodium chloride solution, dried with anhydrous sodium sulfate, concentrated using a rotary evaporator, and purified by column chromatography to obtain the target product 10b.
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