Analyzing the synthesis route of 625471-18-3

625471-18-3 (S)-tert-Butyl 3-aminopiperidine-1-carboxylate 1501975, apiperidines compound, is more and more widely used in various fields.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.625471-18-3,(S)-tert-Butyl 3-aminopiperidine-1-carboxylate,as a common compound, the synthetic route is as follows.,625471-18-3

Amino derivative 43a (1.05 g, 5.24 mmol), 2,5-diamino-4,6-dichloropyrimidine 17 (1.03 g, 5.76 mmol), and triethylamine (3.1 ml, 22.53 mmol) were suspended in n-butanol (80 ml) and heated to 140 ¡ãC in a pressure vessel over 48 h. After the reaction was completed, the solvent was evaporated and the residue chromatographed on a silica gel using a linear gradient of ethyl acetate in toluene. The product was obtained in a 54percent yield (969 mg, 2.82 mmol) as a light orange foam.1H NMR, 13C NMR, and IR spectra were identical to those of 33b. HRMS (ESI) C14H24O2N6Cl (M+H)+ calcd 343.1644, found 343.1645; [alpha]D20 -31.1 (c 0.106, EtOH).

625471-18-3 (S)-tert-Butyl 3-aminopiperidine-1-carboxylate 1501975, apiperidines compound, is more and more widely used in various fields.

Reference£º
Article; Kovac?kova?, Son?a; Drac?i?nsky?, Martin; Rejman, Dominik; Tetrahedron; vol. 67; 7; (2011); p. 1485 – 1500;,
Piperidine – Wikipedia
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