Dichloromethane → 2-Chloro-N-[(6,7-dihydro-4-methyl-5H-cyclopentapyrimidin-2-yl)aminocarbonyl]pyridine-3-sulfonamide
Reaction equation
[CH3:1][C:2]1[C:7]2[CH2:8][CH2:9][CH2:10][C:6]=2[N:5]=[C:4]([NH2:11])[N:3]=1.ClC1N([S:19]([N:22]=[C:23]=[O:24])(=[O:21])=[O:20])C=CC=N1.[CH2:25]([Cl:27])Cl>>[Cl:27][C:25]1[C:10]([S:19]([NH:22][C:23]([NH:11][C:4]2[N:3]=[C:2]([CH3:1])[C:7]3[CH2:8][CH2:9][CH2:10][C:6]=3[N:5]=2)=[O:24])(=[O:20])=[O:21])=[CH:6][CH:7]=[CH:2][N:3]=1Participants
4
Procedure
To a dry, stirred solution of 7.5 g of 6,7-dihydro-4-methyl-5H-cyclopentapyrimidin-2-amine in 200 ml of methylene chloride at ambient temperature and pressure is added 13 g of 2-chloropyrimidine-3-sulfonylisocyanate. The resulting mixture is stirred at reflux for 2 hours and then concentrated at reduced pressure. The residue is triturated with 1-chlorobutane and filtered to yield the desired solid product.
Workup
- temperatureat reflux for 2 hours
- concentrationconcentrated at reduced pressure
- customThe residue is triturated with 1-chlorobutane
- filtrationfiltered
- customto yield the desired solid product
Sources & evidence
- ORD record
- ord-daf8c73518e1433d888d201b692a4462
- Source dataset
- uspto-grants-1982_07
- Patent number
- US04339267
Reaction notes
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