Pharmaceutical compound used as JAK kinase inhibitor
A drug compound and compound technology, which can be used in drug combinations, antipyretics, anti-inflammatory agents, etc., can solve problems such as few reports of Tyk2, and achieve the best therapeutic effect, good JAK kinase activity and the effect of
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Embodiment 1
[0048] Example 1 General method for synthesis of compound 1 (TDM-180944)
[0049]
[0050] Step 1: Preparation of compound 1 (TDM-180944)
[0051] To a solution of compound 1a (60 mg, 0.225 mmol) in pyridine (5 mL) was added compound 1b (65.8 mg, 0.315 mmol) at room temperature, and the mixture was heated to 70° C. and stirred for 6 h. Then the mixture was concentrated under reduced pressure, and the residue was purified by silica gel chromatography (dichloromethane: 10% methanol in dichloromethane = 70:30) and formic acid preparation to obtain yellow solid compound 1, TDM-180944, namely 1- (2-Fluorophenyl)-N-(4-(2-(((1-methyl-1H-pyrazol-4-yl)amino)pyrimidin-4-yl)phenyl)methanesulfonamide (34.5mg , 34.97% yield).
[0052] 1 H NMR(400MHz, DMSO-d 6 )δ10.34(s,1H),9.45(s,1H),8.45(d,J=5.2Hz,1H), 8.10(d,J=8.6Hz,2H),7.93(s,1H),7.55( s, 1H), 7.45–7.30 (m, 4H), 7.25–7.17 (m, 3H), 4.60 (s, 2H), 3.84 (s, 3H). LCMS[M+1] + = 439.2.
Embodiment 2
[0053] Example 2 General method for synthesis of compound 2 (TDM-180945)
[0054] Prepare compound 2 in a similar manner to Example 1: TDM-180945, namely 1-(3-fluorophenyl)-N-(4-(2-(((1-methyl-1H-pyrazol-4-yl)amino)pyrimidin-4-yl)phenyl ) Methanesulfonamide (26.1 mg, 19.8% yield).
[0055] 1 H NMR(400MHz, DMSO-d 6 )δ10.25(s,1H),9.45(s,1H),8.45(d,J=5.2Hz,1H), 8.12(d,J=8.6Hz,2H),7.93(s,1H),7.56( s, 1H), 7.40 (dd, J = 14.3, 7.6 Hz, 1H), 7.32 (d, J = 8.6 Hz, 2H), 7.26-7.15 (m, 2H), 7.11 (d, J = 7.3 Hz, 2H ), 4.63 (s, 2H), 3.84 (s, 3H). LCMS[M+1] + = 439.2.
Embodiment 3
[0056] Example 3 General method for synthesis of compound 3 (TDM-180958)
[0057]
[0058] Step 1: Preparation of compound 3c (3-cyanobenzylaminothiocarbamate)
[0059] Compound 3b (690 mg, 9.08 mmol) was added to the ethanol (13 mL) solution of compound 3a (1.78 g, 9.08 mmol), the reaction solution was heated to 80° C. and stirred for 1 hour, LCMS [M+H] + =192, the detection reaction is complete. Post-treatment: the reaction solution was concentrated to dryness to obtain the white target compound (compound 3c, 1.7 g, yield 97.7%), LCMS [M+1] + =192.
[0060] Step 2: Preparation of compound 3d ((3-cyanophenyl)methanesulfonyl chloride)
[0061] To the N-chlorosuccinimide (4.85g, 36.32mmol) in acetonitrile (20mL) was added 2N hydrochloric acid solution (2.5mL) and compound 3c (1.74g, 9.08mmol), the reaction solution was stirred at room temperature for 30 minutes . Post-treatment: After the reaction was completed, the acetonitrile was concentrated and removed, water (15 mL) was added, ...
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