Triethylamine → HCID 18470601, compound
Reaction equation
[C:1]([O:5][C:6]([NH:8][CH2:9][CH2:10][NH2:11])=[O:7])([CH3:4])([CH3:3])[CH3:2].CN(C1C=CC=CN=1)C.C(N(CC)CC)C.[Cl:28][C:29]1[CH:34]=[CH:33][CH:32]=[C:31]([F:35])[C:30]=1[C:36]1[C:40]([C:41](Cl)=[O:42])=[C:39]([CH3:44])[O:38][N:37]=1>ClCCl.C(OCC)(=O)C.O>[C:1]([O:5][C:6]([NH:8][CH2:9][CH2:10][NH:11][C:41]([C:40]1[C:36]([C:30]2[C:31]([F:35])=[CH:32][CH:33]=[CH:34][C:29]=2[Cl:28])=[N:37][O:38][C:39]=1[CH3:44])=[O:42])=[O:7])([CH3:4])([CH3:3])[CH3:2]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 3
Procedure
N-t-butyloxycarbonyl-1,2-diaminoethane (355 mg, 2.22 mmol), dimethylaminopyridine (27 mg, 0.222 mmol), and triethylamine (247 mg, 2.44 mmol) were combined in 5 mL of dry dichloromethane. 3-(2-Chloro-6-fluorophenyl)-5-methylisoxazol-4-oyl chloride (607 mg, 2.22 mmol) was added in slowly. The reaction was stirred for 3 hours at room temperature under nitrogen. The reaction was diluted with ethyl acetate and water. The ethyl acetate was separated and washed three times each with 25 mL of 1N aqueous hydrochloric acid and brine, dried over sodium sulfate, filtered, and concentrated in vacuo. The residue was treated with hexanes to crystallize 794 mg of the title compound. (90%). EA calculated for: C18H21N3O4ClF: C, 54.34; H, 5.32; N, 10.56. Found: C, 54.30; H, 5.36; N, 10.44. MS(IS) m/z 398 (M+).
Workup
- customThe ethyl acetate was separated
- washwashed three times each with 25 mL of 1N aqueous hydrochloric acid and brine
- dry with materialdried over sodium sulfate
- filtrationfiltered
- concentrationconcentrated in vacuo
- additionThe residue was treated with hexanes
- customto crystallize 794 mg of the title compound
Sources & evidence
- ORD record
- ord-9a961021d8e34c889a04ff50870959e5
- Source dataset
- uspto-grants-2002_07
- Patent number
- US06417193B1
Reaction notes
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