6274-22-2, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 6274-22-2 name is 4-Amino-N-methylbenzamide, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.
Example 33-(7-(3,4-Dimethoxyphenylamino)thiazolo[5,4-d]pyrimidin-5-yl)-N-(4-(methylcarbamoyl)phenyl)benzamide Procedure:A solution of 3-[7-(3,4-dimethoxy-phenylamino)-thiazolo[5,4-d]pyrimidin-5-yl]-benzoic acid (170 mg, 0.41 mmol) in 10 mL of DMF were added 4-amino-N-methyl-benzamide (81 mg, 0.54 mmol), HATU (205 mg, 0.54 mmol) and DIEA (79 mg, 0.61 mmol) at room temperature. Then the reaction mixture was stirred at room temperature for 16 hours. The solvent was evaporated to give a solid as a crude product. It was purified by preparative HPLC (Gemini 5u C18 150¡Á21.2 mm; inject volume: 3 ml/inj, flow rate: 20 ml/min; wavelength: 214 nm and 254 nm; the gradient conditions are: 40% acetonitrile/60% water (0.1% TFA V/V) initially, and then proceed to 70% acetonitrile/30% water (0.1% TFA V/V) in a linear fashion after just 9 min.) to give 3-(7-(3,4-dimethoxyphenylamino)thiazolo[5,4-d]pyrimidin-5-yl)-N-(4-(methylcarbamoyl)phenyl)benzamide (66 mg, 29.7%) as a yellow solid. 1H NMR (300 MHz, DMSO): delta 10.66 (s, 1H), 10.21 (s, 1H), 9.39 (s, 1H), 8.93 (s, 1H), 8.59 (d, 1H, J=7.2 Hz), 8.38-8.37 (m, 1H), 8.05 (d, 1H, J=8.7 Hz), 7.89-7.82 (m, 6H), 7.71-7.68 (m, 12H), 7.54-7.50 (m, 1H), 6.97 (d, 1H, J=8.7 Hz), 3.78 (s, 3H), 3.72 (s, 3H), 2.78 (d, 1H, J=3.9 Hz). LC-MS: 541.1 [M+H]+, tR=1.72 min. HPLC: 96.60% at 214 nm, 97.75% at 254 nm, tR=6.68 min.
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 4-Amino-N-methylbenzamide, and friends who are interested can also refer to it.
Reference:
Patent; Hermann, Johannes Cornelius; Lowrie, JR., Lee Edwin; Lucas, Matthew C.; Luk, Kin-Chun Thomas; Padilla, Fernando; Wanner, Jutta; Xie, Wenwei; Zhang, Xiaohu; US2012/252777; (2012); A1;,
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