Morpholine → N-(2-(dimethylamino)-[1,2,4]triazolo[1,5-a]pyridin-7-yl)-1-methyl-4-(morpholine-4-carbonyl)-1H-pyrazole-5-carboxamide

HRID 1802208Notes

Reaction equation

[CH3:1][N:2]([CH3:24])[C:3]1[N:23]=[C:6]2[CH:7]=[C:8]([NH:11][C:12]([C:14]3[N:18]([CH3:19])[N:17]=[CH:16][C:15]=3[C:20]([OH:22])=O)=[O:13])[CH:9]=[CH:10][N:5]2[N:4]=1.[NH:25]1[CH2:30][CH2:29][O:28][CH2:27][CH2:26]1.CCCP(=O)=O.C(N(C(C)C)CC)(C)C>O1CCCC1>[CH3:24][N:2]([CH3:1])[C:3]1[N:23]=[C:6]2[CH:7]=[C:8]([NH:11][C:12]([C:14]3[N:18]([CH3:19])[N:17]=[CH:16][C:15]=3[C:20]([N:25]3[CH2:30][CH2:29][O:28][CH2:27][CH2:26]3)=[O:22])=[O:13])[CH:9]=[CH:10][N:5]2[N:4]=1

Participants

Conditions

Temperature: 70 °C

Procedure

A mixture of 5-(2-(dimethylamino)-[1,2,4]triazolo[1,5-a]pyridin-7-ylcarbamoyl)-1-methyl-1H-pyrazole-4-carboxylic acid (150 mg, 455 μmol), morpholine (317 μl, 3.64 mmol), propylphosphonic anhydride (50% in ethyl acetate, 671 μl, 1.14 mmol) and diisopropylethylamine (239 μl, 1.37 mmol) in tetrahydrofurane (8 ml) is stirred for 18 hours at 70° C. under nitrogen atmosphere. The solvent is evaporated and the residue triturated with sat. aqueous sodium hydrogencarbonate solution. The precipitated solid is collected by filtration, washed with water and dried affording N-(2-(dimethylamino)-[1,2,4]triazolo[1,5-a]pyridin-7-yl)-1-methyl-4-(morpholine-4-carbonyl)-1H-pyrazole-5-carboxamide (152 mg, 83.8%) as an off-white solid. Mp.: 196-8° C. MS: m/z=399.0 (M+H+).

Workup

customThe solvent is evaporated
customthe residue triturated with sat. aqueous sodium hydrogencarbonate solution
filtrationThe precipitated solid is collected by filtration
washwashed with water
customdried

Sources & evidence

ORD record: ord-fec5c9d0874a4013b08155864ae76640
Source dataset: uspto-grants-2013_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08349824B2

Reaction notes

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