Water → HCID 18700278, compound
Reaction equation
Cl.C(N=C=NCCCN(C)C)C.[Cl:13][C:14]1[C:15]([O:25][CH:26]([CH3:30])[C:27]([OH:29])=O)=[N:16][C:17]([CH3:24])=[N:18][C:19]=1[C:20]([F:23])([F:22])[F:21].[NH2:31][C:32]([CH3:39])([C:35]([CH3:38])([CH3:37])[CH3:36])[C:33]#[N:34].O>O1CCCC1>[Cl:13][C:14]1[C:15]([O:25][CH:26]([CH3:30])[C:27]([NH:31][C:32]([C:33]#[N:34])([CH3:39])[C:35]([CH3:38])([CH3:37])[CH3:36])=[O:29])=[N:16][C:17]([CH3:24])=[N:18][C:19]=1[C:20]([F:21])([F:22])[F:23]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
1-Ethyl-3-(3-dimethylaminopropyl)carbodimide hydrochloride (0.8 g) was added to a solution containing 2-(5-chloro-2-methyl-6-trifluoromethylpyrimidin-4-yloxy)propionic acid (1.0 g) dissolved in tetrahydrofuran (30 ml), at room temperature, and the mixture was stirred for 30 min. Subsequently, 2-amino-2,3,3-trimethylbutyronitrile (0.5 g) was added to the mixture, and the reaction mixture was stirred for 10 hours at room temperature. After completion of the reaction, water was added to the resulting mixture and the organic layer was extracted with ethyl acetate, and subsequently dried over anhydrous magnesium sulfate. The ethyl acetate was removed under reduced pressure. The residue was purified by column chromatography on silica gel to give 0.3 g of the A-configurational diastereomer having a melting point of 1 33° C. to 1 34° C. and 0.2 g of the B-configurational diastereomer having a melting point of 137° C. to 139° C.
Workup
- stirringthe reaction mixture was stirred for 10 hours at room temperature
- additionwas added to the resulting mixture
- extractionthe organic layer was extracted with ethyl acetate
- dry with materialsubsequently dried over anhydrous magnesium sulfate
- customThe ethyl acetate was removed under reduced pressure
- customThe residue was purified by column chromatography on silica gel
- customto give 0.3 g of the A-configurational diastereomer
- customa melting point of 1 33° C.
- customto 1 34° C. and 0.2 g of the B-configurational diastereomer
Sources & evidence
- ORD record
- ord-dbe0c2f67e2d48a6be49176ae5c4a417
- Source dataset
- uspto-grants-2000_07
- Patent number
- US06090815
Reaction notes
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