923283-63-0, name is 1-tert-Butyl 3-methyl 4-amino-1H-pyrazole-1,3-dicarboxylate, belongs to pyrazoles-derivatives compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. HPLC of Formula: C10H15N3O4
Compound 27: Formamidine acetate (40.3 mmol, 4.2 g) was added to a solution containing 26 (8.85 g, 36.7 mmol) in Hunig’s base (40 mL) and n-BuOH (40 mL). The stirred solution was heated at 110 C. for 1 hour. After cooling to ambient temperature the resulting solid was collected, washed with dichloromethane, and dried under reduced pressure to afford 27 (4.46 g, 89%), ES (+) MS m/e=137.
The synthetic route of 923283-63-0 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Sunesis Pharmaceuticals, Inc.; US2007/27166; (2007); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics