Phenylpiperazine derivative, use method and uses thereof
An alkyl and drug technology, which is applied in the field of compounds and compositions for the treatment of central nervous system dysfunction of affective disorders, can solve the problems of delay and deterioration of SSRIs' therapeutic effect, and achieve good safety, stable properties and good clinical application prospects Effect
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Embodiment 1
[0195] Example 12-(2-(piperazin-1-yl)phenoxy)nicotinamide
[0196]
[0197] Step 1) Synthesis of 4-(2-((3-carbamoylpyridin-2-yl)oxy)phenyl)piperazine-1-carboxylic acid tert-butyl ester
[0198] 4-(2-hydroxyphenyl)piperazine-1-carboxylic acid tert-butyl ester (0.42g, 1.51mmol), 2-chloronicotinamide (0.25g, 1.58mmol) and potassium carbonate (0.42g, 3.02mmol) were sequentially It was added into DMSO (10 mL), and then the reaction solution was heated to 110° C. for 20 hours. After the reaction, the reaction solution was cooled to room temperature, washed with water (20 mL), and extracted with ethyl acetate (20 mL×3). The combined organic phases were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column (petroleum ether / ethyl acetate (v / v)=2 / 1) to obtain the title compound as a pale yellow solid (0.42 g, 69.9%).
[0199] MS(ESI,pos.ion)m / z:399.1[M+H] + ;
[0200] 1 HNMR (CD...
Embodiment 2
[0205] Example 21-(2-((4-(trifluoromethyl)pyridin-2-yl)oxy)phenyl)piperazine
[0206]
[0207] Step 1) Synthesis of 4-(2-((4-(trifluoromethyl)pyridin-2-yl)oxy)phenyl)piperazine-1-carboxylic acid tert-butyl ester
[0208] The title compound of this step can be prepared by referring to the method described in step 1 of Example 1, that is, tert-butyl 4-(2-hydroxyphenyl)piperazine-1-carboxylate (0.42g, 1.51mmol), 2-chloro-4 -(trifluoromethyl)pyridine (0.29g, 1.58mmol) and potassium carbonate (0.42g, 3.02mmol) were reacted in DMSO (10mL) to prepare the crude product, which was purified by silica gel column (petroleum ether / ethyl acetate (v / v) = 2 / 1) to obtain the title compound as a pale yellow solid (0.25 g, 39.1%).
[0209] MS(ESI,pos.ion)m / z:424.1[M+H] + ;
[0210] 1 HNMR (CDCl 3 ,400MHz)δ(ppm):8.33(d,J=5.2Hz,1H),7.24-7.22(m,1H),7.19-7.16(m,2H),7.14-7.12(m,1H),7.07-7.04 (m,1H),6.95(m,1H),3.20-3.17(m,4H),2.93-2.91(m,4H),1.43(s,9H).
[0211] Step 2) Synthesis of 1-...
Embodiment 3
[0215] Example 31-(2-((5-(trifluoromethyl)pyridin-2-yl)oxy)phenyl)piperazine
[0216]
[0217] Step 1) Synthesis of tert-butyl 4-(2-((5-(trifluoromethyl)pyridin-2-yl)oxy)phenyl)piperazine-1-carboxylate
[0218] The title compound of this step can be prepared by referring to the method described in step 1 of Example 1, that is, tert-butyl 4-(2-hydroxyphenyl)piperazine-1-carboxylate (0.42g, 1.51mmol), 2-chloro-5 -(trifluoromethyl)pyridine (0.29g, 1.58mmol) and potassium carbonate (0.42g, 3.02mmol) were reacted in DMSO (10mL) to prepare the crude product, which was purified by silica gel column (petroleum ether / ethyl acetate (v / v)=2 / 1) the title compound was obtained as a white solid (0.35 g, 54.8%).
[0219] MS(ESI,pos.ion)m / z:424.1[M+H] + ;
[0220] 1 HNMR (CDCl 3 ,400MHz)δ(ppm):8.24(s,1H),7.85(dd,J=8.4,2.4Hz,1H),7.26-7.21(m,1H),7.15(dd,J=7.6,1.6Hz,1H ), 7.12(dd, J=7.2, 1.2Hz, 1H), 7.07-7.05(m, 1H), 6.87(d, J=8.8Hz, 1H), 3.25-3.23(m, 4H), 2.95-2.92( m,4H),1.44(s,9...
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