Methanesulfonic Acid → HCID 23582062, compound
Reaction equation
[NH2:1][C:2]1[C:14]2[C:13]3[CH:12]=[CH:11][C:10]([C:15]([F:18])([F:17])[F:16])=[CH:9][C:8]=3[N:7]([CH3:19])[C:6]=2[C:5]([C:20]#[N:21])=[CH:4][N:3]=1.CS(O)(=O)=[O:24]>>[NH2:1][C:2]1[C:14]2[C:13]3[CH:12]=[CH:11][C:10]([C:15]([F:18])([F:16])[F:17])=[CH:9][C:8]=3[N:7]([CH3:19])[C:6]=2[C:5]([C:20]([NH2:21])=[O:24])=[CH:4][N:3]=1Participants
3
Conditions
- Temperature
- 120 °C
Procedure
A suspension of the product of Step 3 in a 1:1 (mass/mass) mixture of PPA/CH3SO3H (0.034 M) was stirred for 90 min at 120° C. The resulting mixture was then added to ice-cold saturated NaHCO3 solution, stirring until all the reagent was consumed and the pH was 7-8. The crude material was collected by filtration, and was purified by preparative TLC, eluting with 1:20 MeOH:EtOAc to give the title compound as a white solid.
Workup
- additionThe resulting mixture was then added to ice-cold saturated NaHCO3 solution
- stirringstirring until all the reagent
- customwas consumed
- filtrationThe crude material was collected by filtration
- customwas purified by preparative TLC
- washeluting with 1:20 MeOH
Sources & evidence
- ORD record
- ord-732e28ec219e4b4dad9088ea9e699e18
- Source dataset
- uspto-grants-2013_08
- Patent number
- US08518964B2
Reaction notes
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