Downstream synthetic route of 129799-08-2

129799-08-2, As the paragraph descriping shows that 129799-08-2 is playing an increasingly important role.

129799-08-2, 1-tert-Butyl 3-methyl piperazine-1,3-dicarboxylate is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A mixture of 7-benzyl-2,4-dichloro-6,8-dihydro-5H-pyrido[3,4-d] pyrimidine (3.00 g, 10.2 mmol, 1.00 eq), 1-tert-butyl-3-methyl piperazine-1,3-dicarboxylate (2.62 g, 10.7 mmol, 1.05 eq), DIEA (3.30 g, 25.5 mmol, 4.45 mL, 2.50 eq) in DMSO (50.0 mL) was degassed and purged with nitrogen 3 times. The mixture was stirred at 100° C. for 12 hours under a nitrogen atmosphere. The reaction mixture was diluted with DCM (200 mL), washed with brine (3 50 mL), dried over Na 2SO 4, filtered and concentrated under reduced pressure to dryness. The residue was purified by column chromatography (SiO 2, Petroleum ether/Ethyl acetate=10:1 to 3:1) to give 1-tert-butyl 3-methyl 4-(7-benzyl-2-chloro-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-yl)pipera- zine-1,3-dicarboxylate (2.10 g, 3.81 mmol, 37.4% yield, 91.0% purity) as a yellow oil. ESI MS m/z 502.1 [M+H] +.

129799-08-2, As the paragraph descriping shows that 129799-08-2 is playing an increasingly important role.

Reference:
Patent; Mirati Therapeutics, Inc.; Array BioPharma Inc.; Blake, James F.; Burgess, Laurence E.; Chicarelli, Mark Joseph; Christensen, James Gail; Cook, Adam; Fell, Jay Bradford; Fischer, John P.; Marx, Matthew Arnold; Mejia, Macedonio J.; Savechenkov, Pavel; Vigers, Guy P.A.; Smith, Christopher Ronald; Rodriguez, Martha E.; US2019/144444; (2019); A1;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics