1403898-64-5, (2R,5R)-tert-Butyl 5-(hydroxymethyl)-2-methylpiperazine-1-carboxylate is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
Preparation 10: (2R,5R)-2-Hydroxymethyl-5-methyl-piperazine-1 ,4-dicarboxylic acid 1 – benzyl ester 4-ferf-butyl esterTo (2R,5R)-5-hydroxymethyl-2-methyl-piperazine-1 -carboxylic acid ie f-butyl ester (21 g, 90 mmol) in THF (210 mL) at 3-4 C (ice bath) was added 1 M aqueous NaOH (99.5 mL) and benzyl chloroformate (12.9 mL, 90.43 mmol). After stirring for 1 h at the same temperature, the mixture was left to stir for another 1 h and then warmed to RT. The organic layer was separated and the aqueous phase extracted with EtOAc (2 x 50 mL). The combined organic extracts were washed with saturated brine solution (150 mL), then dried over sodium sulfate, filtered and concentrated. The crude oil was purified by column chromatography on silica gel (gradient elution, 0 – 100%, EtOAc/petrol), to give the title compound (26 g) as a pale yellow oil, used directly in Preparation 1 1 . 1H NMR (Me-d3-OD): 7.47-7.15 (5H, m), 5.26-5.07 (2H, m), 4.25 (2H, s), 4.04-3.88 (1 H, m), 3.83 (1 H, d), 3.61 (2H, bs), 3.31 -3.09 (2H, m), 1 .48 (9H, s), 1.14 (3H, t)., 1403898-64-5
The synthetic route of 1403898-64-5 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; ASTEX THERAPEUTICS LIMITED; WOOLFORD, Alison Jo-Anne; HOWARD, Steven; BUCK, Ildiko Maria; CHESSARI, Gianni; JOHNSON, Christopher Norbert; TAMANINI, Emiliano; DAY, James Edward Harvey; CHIARPARIN, Elisabetta; HEIGHTMAN, Thomas Daniel; FREDERICKSON, Martyn; GRIFFITHS-JONES, Charlotte Mary; WO2012/143726; (2012); A1;,
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