With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.170911-92-9,tert-Butyl 4-(4-aminophenyl)piperazine-1-carboxylate,as a common compound, the synthetic route is as follows.
mCPBA (<77% pure) (15.5 mg, assumed 0.069 mmol) in DCM (0.5 mL) was added to a stirred solution of 6 - (2 -chloropyridin-3 -yl ) -2 - (methylthio) pyrido [4 , 3 -d] pyrimidin-5 (6H) -one (18.2 mg, 0.060 mmol) in toluene (1.5 mL) at RT under nitrogen. After 15 min, DIPEA (0.031 mL, 0.179 mmol) and tert-butyl 4- (4- aminophenyl) piperazine-l-carboxylate (18.2 mg, 0.066 mmol) [commercially available] were added, successively, and thetemperature was increased to 60 C. After 16 h, the reaction mixture was allowed to cool to RT, and was loaded onto a KP-NH column and purified by flash chromatography (0- 100%, EtOAc in cyclohexane) to give the title compound (14.3 mg, 45%) as a yellow solid. LCMS (Method A) : RT = 1.33 min, m/z = 534 [M+H]+., 170911-92-9
170911-92-9 tert-Butyl 4-(4-aminophenyl)piperazine-1-carboxylate 11011301, apiperazines compound, is more and more widely used in various fields.
Reference£º
Patent; ALMAC DISCOVERY LIMITED; O’DOWD, Colin Roderick; ROUNTREE, James Samuel Shane; BURKAMP, Frank; WILKINSON, Andrew John; WO2014/167347; (2014); A1;,
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