4-Toluenesulfonyl chloride → HCID 10024938, compound
Reaction equation
[OH-].[NH4+:2].[CH2:3]([C:7]1[N:8]([CH2:21][CH2:22][CH2:23][NH:24][C:25]([NH:27][C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)=[O:26])[C:9]2[C:18]3[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=3[N+:12]([O-])=[CH:11][C:10]=2[N:20]=1)[CH2:4][CH2:5][CH3:6].S(Cl)(C1C=CC(C)=CC=1)(=O)=O>ClCCl>[NH2:2][C:11]1[C:10]2[N:20]=[C:7]([CH2:3][CH2:4][CH2:5][CH3:6])[N:8]([CH2:21][CH2:22][CH2:23][NH:24][C:25]([NH:27][C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=3)=[O:26])[C:9]=2[C:18]2[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=2[N:12]=1Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
Concentrated ammonium hydroxide (35 mL) was added with stirring to a solution of N-[3-(2-butyl-5-oxido-1H-imidazo[4,5-c]quinolin-1-yl)propyl]-N′-phenylurea (2.25 g, 5.39 mmol) in dichloromethane (100 mL). Tosyl chloride (1.13 g,5.93 mmol) was added in small portions over a period of 30 minutes. After 1 hour the layers were separated. The aqueous layer was extracted with dichloromethane (2×25 mL). The organics were combined and extracted with water (3×50 mL). The aqueous layers were combined and filtered to provide 1.64 g of an off white solid. This material was recrystallized sequentially from 1,2-dichloroethane, isopropyl alcohol and methanol to provide 960 mg of N-[3-(4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl)propyl]-N′-phenylurea as light tan needles, m.p. 191-192° C. Analysis: Calculated for C24H28N6O: %C, 69.21; %H, 6.78; %N, 20.18; Found: %C; 68.94; %H, 6.77; %N, 19.90.
Workup
- customAfter 1 hour the layers were separated
- extractionThe aqueous layer was extracted with dichloromethane (2×25 mL)
- extractionextracted with water (3×50 mL)
- filtrationfiltered
- customto provide 1.64 g of an off white solid
- customThis material was recrystallized sequentially from 1,2-dichloroethane, isopropyl alcohol and methanol
Sources & evidence
- ORD record
- ord-a4a1ed9efdf94b3993ffb2d4234d352a
- Source dataset
- uspto-grants-2004_08
- Patent number
- US06784188B2
Reaction notes
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