Trimethylamine → 4-amino-N-(2-ethylamino-6-methylamino-pyrimidin-4-yl)-benzenesulfonamide
Reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:11][C:12]2[CH:17]=[C:16](Cl)[N:15]=[C:14]([NH:19][CH2:20][CH3:21])[N:13]=2)(=[O:10])=[O:9])=[CH:4][CH:3]=1.[CH3:22][N:23](C)C.Cl.CN>C(O)C>[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:11][C:12]2[CH:17]=[C:16]([NH:23][CH3:22])[N:15]=[C:14]([NH:19][CH2:20][CH3:21])[N:13]=2)(=[O:10])=[O:9])=[CH:4][CH:3]=1Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
0.1 g (0.00031 mol) of 4-amino-N-(6-chloro-2-ethylamino-pyrimidin-4-yl)-benzenesulfonamide was dissolved in 20 ml of ethanol and stirred with 0.6 ml (0.0043 mol) of trimethylamine and 0.1 g (0.0015 mol) of methylamine hydrochloride in an autoclave at 130° C. for 4 hours. The reaction mixture was freed from solvent, the residue was suspended in 5 ml of ethanol and treated in an ultrasound bath for 15 minutes. The precipitate was filtered off, dissolved in 150 ml of 1N NaOH and filtered. The filtrate was adjusted to pH 6 with 0.1N HCl. The precipitate was filtered off under suction, washed with water and dried. There was obtained 0.053 g (54%) of 4-amino-N-(2-ethylamino-6-methylamino-pyrimidin-4-yl)-benzenesulfonamide as beige crystals; m.p.: 261-263° C.
Workup
- additiontreated in an ultrasound bath for 15 minutes
- filtrationThe precipitate was filtered off
- dissolutiondissolved in 150 ml of 1N NaOH
- filtrationfiltered
- filtrationThe precipitate was filtered off under suction
- washwashed with water
- customdried
Sources & evidence
- ORD record
- ord-ebeb085b2ad8462fa0a339670cc4d17c
- Source dataset
- uspto-grants-1999_12
- Patent number
- US05998665
Reaction notes
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