Related Products of 19962-04-0, These common heterocyclic compound, 19962-04-0, name is 3-Aminophenyl dimethylcarbamate, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
A. Preparation of tert-butyl 4-(tert-butoxycarbonylamino)-4-(3-(dimethylcarbamoyloxy)phenylcarbamoyl)piperidine-1-carboxylate. N-Boc-amino-(4-N-Boc-piperidinyl)carboxylic acid (0.114 g, 0.33 mmol), HATU (0.151 g, 0.40 mmol) and N,N-diisopropylethylamine (128 mg, 1.0 mmol) were combined in isopropyl acetate (2.3 mL) and stirred at room temperature for 15 minutes. 3-aminophenyl dimethylcarbamate (0.072 g, 0.40 mmol) was added, and the mixture heated at 80 C. for 1.5 hours. The reaction mixture was allowed to cool, diluted with EtOAc, washed with 2 N Na2CO3, 1 N HCl, and brine, and then dried over MgSO4 and concentrated. Purification by silica gel chromatography (60% EtOAc/hexanes) gave the title compound (0.075 g, 45%) as a white solid. MS (ES+) [M+NH4]+=524.
The synthetic route of 19962-04-0 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Burgoon, Hugh Alfred; Goodwin, Nicole Cathleen; Harrison, Bryce Alden; Healy, Jason Patrick; Liu, Ying; Mabon, Ross; Marinelli, Brett; Rawlins, David Brent; Rice, Dennis Stewart; Whitlock, Norris Andrew; US2009/264450; (2009); A1;,
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