Fused ring compound, and preparation method and application thereof
A technology of compounds and mixtures, applied in the field of new fused-ring compounds, can solve the problems of colorectal tumor and colorectal cancer liver metastases and deterioration
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Embodiment 1
[0238] Example 1: 2-(3-(Benzyloxy)propyl)-1,4-dimethyl-7-(1H-pyrazol-3-yl)-1H-imidazo[4,5-d]thiophene And[3,2-b]pyridine(1)
[0239] 3-(1,4-Dimethyl-7-(1H-pyrazol-3-yl)-1H-imidazo[4,5-d]thieno[3,2-b]pyridin-2-yl)propane Alcohol (2)
[0240]
[0241] The first step: the synthesis of compound (4-benzyloxy)-(7-(methylamino)thieno[3,2-b]pyridyl-6-yl)butyramide (1b)
[0242] DIPEA (1.44g, 11.16mmol), HATU (1.06g, 2.79mmol) were sequentially added to 4-benzyloxybutanoic acid (541.80mg, 2.79mmol), compound 1a (500mg, 2.79mmol) in DMF (4mL) , and then kept stirring at room temperature for 5hr. The reaction was quenched with water and extracted with dichloromethane. The organic layer was dried and concentrated to obtain compound 1b (850 mg).
[0243] MS(ESI,m / z):356.1[M+H] +
[0244] The second step: the synthesis of compound 2-(3-(benzyloxy)propyl)-1-methyl-1H-imidazo[4,5-d]thieno[3,2-b]pyridine (1c)
[0245]Sodium hydroxide (184.55 mg, 4.61 mmol) was added to compound 1b (...
Embodiment 2
[0261] Example 2: 1,4-Dimethyl-2-(3-(4-methylpiperazin-1-yl)propyl)-7-(1H-pyrazol-3-yl)-1H-imidazo [4,5-d]thieno[3,2-b]pyridine (3)
[0262] 1,4-Dimethyl-2-(3-(4-methylpiperazin-1-yl)propyl)-7-(1H-pyrazol-3-yl)-1H-imidazo[4,5 -d]thieno[3,2-b]pyridine hydrochloride (3a)
[0263]
[0264] The first step: 3-(7-bromo-1,4-dimethyl-1H-imidazo[4,5-d]thieno[3,2-b]pyridin-2-yl)propyl-1- Alcohol (2a)
[0265] Compound 1f (320mg, 0.74mmol) was added into 3mL of trifluoroacetic acid, heated to 80°C and stirred for 16h. The reaction solution was concentrated, redissolved in 3 mL of MeOH, adjusted to pH=9.0 with 2N sodium hydroxide solution, and continued to stir for 30 min. Compound 2a (180 mg) was obtained by flash column chromatography (eluent system A). MS(ESI,m / z):340.0[M+H] + .
[0266] The second step: 7-bromo-2-(3-chloropropane)-1,4-dimethyl-1H-imidazo[4,5-d]thieno[3,2-b]pyridine (2b)
[0267] Compound 2a (180mg, 0.53mmol), DMF (4mg, 0.05mmol) was added to 4mL thionyl chl...
Embodiment 3
[0276] Example 3: 2-(3-(azetidin-1-yl)propyl)-1,4-dimethyl-7-(1H-pyrazol-3-yl)-1H-imidazo[ 4,5-d]thieno[3,2-b]pyridine (5)
[0277]
[0278] The first step: 2-(3-(azetidin-1-yl)propyl)-7-bromo-1,4-dimethyl-1H-imidazo[4,5-d]thieno[ 3,2-b]pyridine (3a)
[0279]Compound 2b (50mg, 0.14mmol), azetidine (48mg, 0.84mmol), tetrabutylammonium iodide (10mg, 0.03mmol), TEA (85mg, 0.84mmol) were added in 3mL of toluene, N 2 Heated to 100°C under protection for 16h. The reaction solvent was spin-dried to obtain compound 3a (53 mg), and the crude product was directly used in the next step. MS(ESI,m / z):379.1[M+H] + .
[0280] The second step: 2-(3-(azetidin-1-yl)propyl)-1,4-dimethyl-7-(1H-pyrazol-3-yl)-1H-imidazo[ 4,5-d]thieno[3,2-b]pyridine (5)
[0281] Compound 3a (53mg, 0.13mmol), 1H-pyrazole-3-boronic acid pinacid (61mg, 0.31mmol), Pd(dppf)Cl 2 (10mg, 0.01mmol), sodium carbonate (40mg, 0.38mmol) was added to the mixed solvent of 4mL DMF and 1mL water, N 2 Heated to 100°C unde...
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