Downstream synthetic route of 4801-58-5

As the paragraph descriping shows that 4801-58-5 is playing an increasingly important role.

4801-58-5,With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.4801-58-5,Piperidin-1-ol,as a common compound, the synthetic route is as follows.

To a solution of 5,6-bis(4-chlorophenyl)pyrazine-2-carbonyl chloride, Inte. D (84 mg, 0.23 mmol) in DCM (1ml) was added slowly at room temperature a solution of hydroxypiperidine (93 mg, 0.91mmol) in pyridine (5 ml). After 40 minutes at room temperature, the solvent was removed in vacuo and the residue redissolved in diethyl ether. Extracted with 1M HC1 (aq) and K2CO3 (aq) and dried (MgSO4). The solvent was removed in vacuo to yield the subtitle compound (58 mg, 59%).JH NMR (399.964 MHz) 8 9.19 (s, 1H), 7.47-7.26 (m, 8H), 3.71-3.50 (m, 2H), 3.16-2.74 (m, 2H), 1.98-1.77 (m, 4H), 1.77-1.57 (m, 1H), 1.40-1.23 (m, 1H).13C NMR (100.58 MHz) 5 162.59,154.17, 151.20, 143.18,140.79,136.22, 136.17, 136.09,135.89, 131.42, 131.29, 129.08, 129.04, 57.87, 25.30, 23.27.MS m/z 428, 430, 432 (M+H)+.

As the paragraph descriping shows that 4801-58-5 is playing an increasingly important role.

Reference:
Patent; ASTRAZENECA AB; WO2004/111033; (2004); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem