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

HRID 1802207Notes

Reaction equation

HRID 1802207 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](O)=[O:21])=[O:13])[CH:9]=[CH:10][N:5]2[N:4]=1.[NH:25]1[CH2:28][CH2:27][CH2:26]1.CCCP(=O)=O.C(N(C(C)C)CC)(C)C>O1CCCC1>[N:25]1([C:20]([C:15]2[CH:16]=[N:17][N:18]([CH3:19])[C:14]=2[C:12]([NH:11][C:8]2[CH:9]=[CH:10][N:5]3[N:4]=[C:3]([N:2]([CH3:1])[CH3:24])[N:23]=[C:6]3[CH:7]=2)=[O:13])=[O:21])[CH2:28][CH2:27][CH2:26]1

Participants

6

Reactant 4

HCID 10422AzetidineHCID 81531DiisopropylethylamineHCID 16167369Propylphosphoric anhydrideHCID 677751075-(2-(dimethylamino)-[1,2,4]triazolo[1,5-a]pyridin-7-ylcarbamoyl)-1-methyl-1H-pyrazole-4-carboxylic acid

Product 1

HCID 573777464-(azetidine-1-carbonyl)-N-(2-(dimethylamino)-[1,2,4]triazolo[1,5-a]pyridin-7-yl)-1-methyl-1H-pyrazole-5-carboxamideYield 71%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

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), azetidine (123 l, 1.82 mmol), propylphosphonic anhydride (50% in ethyl acetate, 671 μl, 1.14 mmol) and diisopropylethylamine (398 μl, 2.28 mmol) in tetrahydrofurane (8 ml) is stirred for 18 hours at room temperature 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 4-(azetidine-1-carbonyl)-N-(2-(dimethylamino)-[1,2,4]triazolo[1,5-a]pyridin-7-yl)-1-methyl-1H-pyrazole-5-carboxamide (119 mg, 70.9%) as an off-white solid. Mp.: 240-1° C. MS: m/z=369.1 (M+H+).

Workup

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

Sources & evidence

ORD record
ord-c4cb52ef91f749c5bd58f4e14314e590
Source dataset
uspto-grants-2013_01
Patent number
US08349824B2

Reaction notes

Loading…