Ammonia → HCID 58941324, compound
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]([S:14]([C:17]2[CH:22]=[CH:21][C:20]([O:23][CH3:24])=[C:19]([O:25][CH3:26])[CH:18]=2)(=[O:16])=[O:15])[CH2:9][CH2:10][C:11](O)=[O:12])=[C:4]([CH2:27][C:28]2[C:33]([F:34])=[CH:32][CH:31]=[CH:30][C:29]=2[F:35])[CH:3]=1.C([N:38]1CCOCC1)C.ClC(OCC)=O.N>O1CCCC1.O.C(OCC)(=O)C>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]([S:14]([C:17]2[CH:22]=[CH:21][C:20]([O:23][CH3:24])=[C:19]([O:25][CH3:26])[CH:18]=2)(=[O:16])=[O:15])[CH2:9][CH2:10][C:11]([NH2:38])=[O:12])=[C:4]([CH2:27][C:28]2[C:33]([F:34])=[CH:32][CH:31]=[CH:30][C:29]=2[F:35])[CH:3]=1Participants
8
Procedure
To 0.8 g of N-[4-chloro-2-(2,6-difluorobenzyl)phenyl]-N-[(3,4-dimethoxyphenyl)sulfonyl]-β-alanine dissolved in 16 ml of tetrahydrofuran are added, at 0° C., 0.21 ml of N-ethylmorpholine and 0.16 ml of ethyl chloroformate. The mixture is left at room temperature for 1 hour, and 1.36 ml of ammonia (20%) in water are then introduced. After 48 hours at room temperature, the reaction medium is taken up in ethyl acetate and washed with water. The organic phase is dried over anhydrous sodium sulfate and concentrated, and the residue is chromatographed on a column of silica gel, eluting with a 98/2 (v/v) dichloromethane/methanol mixture to give 0.295 g of the expected product.
Workup
- additionare added, at 0° C.
- waitAfter 48 hours at room temperature
- washwashed with water
- dry with materialThe organic phase is dried over anhydrous sodium sulfate
- concentrationconcentrated
- customthe residue is chromatographed on a column of silica gel
- washeluting with a 98/2 (v/v) dichloromethane/methanol mixture
Sources & evidence
- ORD record
- ord-f641ed2081dd4a3ebc5e06140f7b97aa
- Source dataset
- uspto-grants-2008_07
- Patent number
- US07396958B2
Reaction notes
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