31166-44-6, 1-Cbz-Piperazine is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
In 2 mL of dimethyl acetamide were combined tert-butyl 4-chloro-5,8-dihydropyrido[3,4-d]pyrimidine-7(6H)-carboxylate (1.0 g, 3.7 mmol), triethylamine (1.0 mL, 7.4 mmol), and benzyl 1-piperazinecarboxylate (0.86 mL, 4.4 mmol). The reaction vessel was sealed and the reaction mixture was heated to 90¡ã C. with stirring. After 5 hours, the reaction was diluted with brine and extracted with methyl t-butyl ether. The combined organic layers were washed sequentially with saturated ammonium chloride and brine, dried over MgSO 4, and concentrated under reduced pressure to a thick oil. The oil was chromatographed (RediSep , 24 g) eluting with 1:1 ethyl acetate/Hexanes to give tert-butyl 4-(4-((benzyloxy)carbonyl)piperazin-1-yl)-5,8-dihydropyrido [3,4-d]pyrimidine-7(6H)-carboxylate (1.3 g, 2.9 mmol, 77% yield). ES+APCI MS m/z 454.2 [M+H] +., 31166-44-6
As the paragraph descriping shows that 31166-44-6 is playing an increasingly important role.
Reference£º
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