Category: 948570-74-9

Related Products of 948570-74-9,Some common heterocyclic compound, 948570-74-9, name is 1-(2-Methoxyethyl)-1H-pyrazol-4-amine, molecular formula is C6H11N3O, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

Example 2; N- [l-(2-methoxyethyl)pyrazol-4-yl] -2- [4-(6,7-dimethoxyqumolin-4-yloxy)phenyl] acetamide; 0 Diisopropylethylamine (0.124 ml) and 2-(7-azabenzotriazol-l-yl)-1,1,3,3-tetramethyluronium hexafiuorophosphate(V) (0.247 g) were added in turn to a stirred mixture of 2-[4-(6,7-dimetlioxyquinolin-4-yloxy)phenyl]acetic acid (0.2 g), 4-amino- l-(2-methoxyethyl)pyrazole (0.092 g) and DMF (3 ml) and the resultant mixture was stirred at ambient temperature for 18 hours. The resultant mixture was evaporated and the residue was purified by column chromatography on silica using a solvent gradient from 100:0 to 24:15 mixtures of methylene chloride and a 3.5M methanolic ammonia solution as eluent. There was thus obtained the title compound as a solid (0.106 g); 1H NMR: (DMSOd6) 3.21 (s, 3H), 3.62 (s, 2H), 3.63 (t, 2H), 3.92 (s, 3H), 3.94 (s, 3H), 4.12 (t, 2H), 6.47 (d, IH), 7.22 (d, 2H), 7.4 (s. IH), 7.44 (s, IH), 7.45 (d, 2H), 7.49 (s, IH), 7.89 (s, IH), 8.47 (d, IH), 10.2 (s, IH); Mass Spectrum: M+H+ 463.

The synthetic route of 948570-74-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; ASTRAZENECA AB; ASTRAZENECA UK LIMITED; WO2007/99326; (2007); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics