4-Bromo-3-methylisoxazol-5-amine → HCID 23445238, compound
Reaction equation
Cl[S:2]([C:5]1[S:9][C:8]([C:10]2[CH:15]=[CH:14][C:13]([O:16][CH3:17])=[CH:12][CH:11]=2)=[CH:7][CH:6]=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:9][C:8]([C:10]2[CH:15]=[CH:14][C:13]([O:16][CH3:17])=[CH:12][CH:11]=2)=[CH:7][CH:6]=1)(=[O:4])=[O:3]Participants
3
Procedure
N-(4-bromo-3-methyl-5-isoxazolyl)-5-(4-methoxyphenyl)thiophene-2-sulfonamide was prepared in the same manner as described in Example 1. Reaction of 5-chlorosulfonyl-2-(4-methoxyphenyl)thiophene with 5-amino-4-bromo-3-methylisoxazole gave N-(4-bromo-3-methyl-5-isoxazolyl)-5-(4-methoxyphenyl)thiophene-2-sulfonamide in 50% yield, m.p. 128-130° C.
Workup
- customN-(4-bromo-3-methyl-5-isoxazolyl)-5-(4-methoxyphenyl)thiophene-2-sulfonamide was prepared in the same manner
Sources & evidence
- ORD record
- ord-dd070c3e2f2e4d9badebc7712415952c
- Source dataset
- uspto-grants-1999_10
- Patent number
- US05962490
Reaction notes
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