With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.146093-46-1,4-(Aminoethyl)-1-N-Boc-piperidine,as a common compound, the synthetic route is as follows.
EXAMPLE 12 A mixture of 3-ethoxycarbonyl-5-(4-cyanophenyl)-1,2,4-oxadiazole (2.0 g) and 2-(1-tert-butoxycarbonylpiperidin-4-yl)ethylamine in N,N-dimethylformamide (1 ml) was heated at 120 C. for 5 hours. The mixture was dissolved with ethyl acetate, washed with water, brine, dried over magnesium sulfate and evaporated in vacuo. The residue was recrystallized from ethanol to afford 3-[{2-(1-tert-butoxycarbonylpiperidin-4-yl)ethyl}carbamoyl]-5-(4-cyanophenyl)-1,2,4-oxadiazole (2.6 g). mp: 138-139 C. IR (Nujol): 3260, 2230, 1685 cm-1 NMR (DMSO-d6, delta): 1.00-1.07 (2H, m), 1.39 (9H, s), 1.46-1.48 (3H, m), 1.66-1.71 (2H, m), 2.65-2.68 (2H, m), 3.32-3.34 (2H, m), 3.89-3.95 (2H, m), 8.14 (2H, d, J=8.4 Hz), 8.31 (2H, d, J=8.4 Hz), 9.10-9.16 (1H, m) Elemental Analysis Calcd. for C22 H27 N5 O4: C 62.10, H 6.39, N 16.45 Found: C 61.84, H 6.42, N 16.23
146093-46-1, As the paragraph descriping shows that 146093-46-1 is playing an increasingly important role.
Reference£º
Patent; Fujisawa Pharmaceutical Co., Ltd.; US5622976; (1997); A;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem