Diisopropylethylamine → (S)-4-{6-Chloro-2-[1-(4-fluorophenyl)ethylamino]pyrimidin-4-yl}piperazine-2,6-dione

HRID 2043405Notes

Reaction equation

Cl[C:2]1[CH:7]=[C:6]([Cl:8])[N:5]=[C:4]([NH:9][C@H:10]([C:12]2[CH:17]=[CH:16][C:15]([F:18])=[CH:14][CH:13]=2)[CH3:11])[N:3]=1.[NH:19]1[C:24](=[O:25])[CH2:23][NH:22][CH2:21][C:20]1=[O:26].C(N(CC)C(C)C)(C)C>O1CCCC1.CN(C)C=O.C(OCC)(=O)C>[Cl:8][C:6]1[N:5]=[C:4]([NH:9][C@H:10]([C:12]2[CH:17]=[CH:16][C:15]([F:18])=[CH:14][CH:13]=2)[CH3:11])[N:3]=[C:2]([N:22]2[CH2:23][C:24](=[O:25])[NH:19][C:20](=[O:26])[CH2:21]2)[CH:7]=1

Participants

Conditions

Temperature: 80 °C

Procedure

182 mg of (S)-4,6-dichloro-N-[1-(4-fluorophenyl)ethyl]pyrimidine-2-amine (Reference Example 1) and 80 mg of piperazine-2,6-dione were dissolved in 2 ml of tetrahydrofuran and 2 ml of N,N-dimethylformamide, and 122 μl of N,N-diisopropylethylamine was added thereto, and the mixture was stirred at 80° C. for 32 hours. The reaction solution was air-cooled to room temperature, and then diluted with ethyl acetate. The solution was washed with water and then dried over magnesium sulfate. The solvent was distilled off under reduced pressure to obtain 136 mg of the objective compound as white powder.

Workup

temperatureThe reaction solution was air-cooled to room temperature
washThe solution was washed with water
dry with materialdried over magnesium sulfate
distillationThe solvent was distilled off under reduced pressure

Sources & evidence

ORD record: ord-a974cc93fc1547a28f701ffe67b77fbc
Source dataset: uspto-grants-2013_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08586591B2

Reaction notes

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