4-{6-[5-(2-chlorinde-6- methylaniline formyl)-thiazole-2-amido]-2-methyl pyrimidine-4}-piperazine-1- diethyl methylphosphate
A technology of diethyl methyl phosphate and methyl aniloyl, which is applied to compounds of group 5/15 elements of the periodic table, organic active ingredients, organic chemistry, etc., to achieve high bioavailability and obvious anti-tumor activity Effect
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Embodiment 1
[0045] Example 1. Benzyl 4-(diethoxyphosphorylmethyl)-piperazine-1-carboxylate
[0046]
[0047] 2.2 g (10 mmol) piperazine-1-carboxylate benzyl ester and 1.38 g (10 mmol) diethyl phosphite and 1 ml of 37% formaldehyde and 120 ml of benzene were placed in a 250 ml flask and heated to reflux to After the reaction is complete, cool down, spin off the solvent, add ethyl acetate to dissolve, wash with sodium bicarbonate solution, wash with water, wash with salt, dry over anhydrous sodium sulfate, spin off the solvent, and separate with a short column to obtain the product 4-(diethoxyphosphorylmethyl Benzyl)-piperazine-1-carboxylate. 1 HNMR (300MHz, D-acetone), δ (ppm): 7.36 (m, 5H, ArH), 5.10 (s, 2H, ArH), 4.08 (m, 4H, 2OCH 2 ), 3.45(t, 4H, 2NCH 2 ), 2.60(t, 4H, 2NCH 2 ), 2.78 (s, 1H, CH 2 ), 2.74 (s, 1H, CH 2 ), 1.26(t, 6H, 2CH 3 ).FABMS: (M+1) + =371.
Embodiment 2
[0048] Example 2. Diethyl piperazine-1-methylphosphate
[0049]
[0050] Dissolve 370 mg (1 mmol) of benzyl 4-(diethoxyphosphorylmethyl)-piperazine-1-carboxylate in 25 ml of tetrahydrofuran / ethanol (1:1) mixed solvent, add palladium carbon (10 %, 180 mg), 40-50 ℃ normal pressure hydrogenation overnight, after the hydrogenation is complete, filter, and spin off the solvent to obtain the product piperazine-1-methyl diethyl phosphate. 1 HNMR (300MHz, D-acetone), δ (ppm): 4.09 (m, 4H, 2OCH 2 ), 2.85(t, 4H, 2NCH 2 ), 2.64(t, 4H, 2NCH 2 ), 2.74 (s, 1H, CH 2 ), 2.70 (s, 1H, CH 2 ), 1.27(t, 6H, 2CH 3 ).FABMS: (M+1) + =237.
Embodiment 3
[0051] Example 3.4-(6-Chloro-2-methylpyrimidin-4-yl)-piperazine-1-methyl diethyl phosphate
[0052]
[0053] Dissolve 236 mg (1 mmol) of piperazine-1-methyldiethylphosphate and 243 mg (1.5 mmol) of 2-methyl-4,6-dichloropyrimidine in 20 mL of anhydrous 1,4-di Add 130 mg (1 mmol) of diisopropylethylamine to oxyhexane, heat and reflux and stir until the raw materials disappear, spin off the solvent, add ethyl acetate to dissolve, wash with sodium bicarbonate solution, wash with water, and dry over anhydrous sodium sulfate. The liquid product 4-(6-chloro-2-methylpyrimidin-4-yl)-piperazine-1-methylphosphoric acid diethyl ester was obtained by spin-off solvent short column separation. 1 H NMR (300MHz, CDCl 3 ), δ (ppm) 6.30 (s, 1H, ArH), 4.12 (m, 4H, 2OCH 2 ), 3.64(t, 4H, 2NCH 2 ), 2.83 (s, 1H, CH 2 ), 2.79 (s, 1H, CH 2 ), 2.70(t, 4H, 2NCH 2 ), 2.45(s, 3H, CH 3 ), 1.31(t, 6H, 2CH 3 ). FABMS: (M+1) + =363.
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