Thionyl Chloride → 5-(3-((7-Methoxyquinolin-4-yloxy)methyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thiophene-2-carbonyl chloride
Reaction equation
[CH3:1][O:2][C:3]1[CH:12]=[C:11]2[C:6]([C:7]([O:13][CH2:14][C:15]3[N:19]4[N:20]=[C:21]([C:24]5[S:28][C:27]([C:29]([OH:31])=O)=[CH:26][CH:25]=5)[CH:22]=[CH:23][C:18]4=[N:17][N:16]=3)=[CH:8][CH:9]=[N:10]2)=[CH:5][CH:4]=1.S(Cl)([Cl:34])=O>ClCCl.CN(C=O)C>[CH3:1][O:2][C:3]1[CH:12]=[C:11]2[C:6]([C:7]([O:13][CH2:14][C:15]3[N:19]4[N:20]=[C:21]([C:24]5[S:28][C:27]([C:29]([Cl:34])=[O:31])=[CH:26][CH:25]=5)[CH:22]=[CH:23][C:18]4=[N:17][N:16]=3)=[CH:8][CH:9]=[N:10]2)=[CH:5][CH:4]=1Participants
5
Procedure
To a suspension of 5-(3-((7-methoxyquinolin-4-yloxy)methyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thiophene-2-carboxylic acid (prepared according to general method A) (0.500 g, 1.15 mmol) in dichloromethane at 0° C. was added thionyl chloride (1.26 ml, 17.3 mmol) dropwise. Three drops DMF were added and the solution was stirred at room temp for three hours. The solution was concentrated to a brown residue and taken forward without further purification.
Workup
- concentrationThe solution was concentrated to a brown residue
- customtaken forward without further purification
Sources & evidence
- ORD record
- ord-d8d7bed5ce2741c6a4ee6d7d30eabf61
- Source dataset
- uspto-grants-2015_06
- Patent number
- US09066954B2
Reaction notes
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