4-Bromo-3-methylisoxazol-5-amine → HCID 23445402, compound
Reaction equation
Cl[S:2]([C:5]1[S:6][C:7]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=2[O:16][CH3:17])=[CH:8][CH:9]=1)(=[O:4])=[O:3].[NH2:18][C:19]1[O:23][N:22]=[C:21]([CH3:24])[C:20]=1[Br:25]>>[Br:25][C:20]1[C:21]([CH3:24])=[N:22][O:23][C:19]=1[NH:18][S:2]([C:5]1[S:6][C:7]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=2[O:16][CH3:17])=[CH:8][CH:9]=1)(=[O:4])=[O:3]Participants
3
Procedure
N-(4-bromo-3-methyl-5-isoxazolyl)-5-(2-methoxyphenyl)thiophene-2-sulfonamide was prepared in the same manner as described in Example 1. Reaction of 2-chlorosulfonyl-5-(2-methoxyphenyl)thiophene with 5-amino-4-bromo-3-methylisoxazole gave N-(4-bromo-3-methyl-5-isoxazolyl)-5-(2-methoxyphenyl)thiophene-2-sulfonamide in 32% yield, m.p. 114-117° C.
Workup
- customN-(4-bromo-3-methyl-5-isoxazolyl)-5-(2-methoxyphenyl)thiophene-2-sulfonamide was prepared in the same manner
Sources & evidence
- ORD record
- ord-abac865eb2e241dab29f70a594f549a8
- Source dataset
- uspto-grants-2003_09
- Patent number
- US06613804B2
Reaction notes
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