Cesium carbonate → (8S)-2-chloro-9-[2-(4-methylpyrid-3-yl)-2-oxoethyl]-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one

HRID 633720

반응식

HRID 633720 반응식
[Cl:1][C:2]1[N:3]=[C:4]2[NH:12][C@H:11]([C:13]([F:16])([F:15])[F:14])[CH2:10][CH2:9][N:5]2[C:6](=[O:8])[CH:7]=1.C(=O)([O-])[O-].[Cs+].[Cs+].Br.Br[CH2:25][C:26]([C:28]1[CH:29]=[N:30][CH:31]=[CH:32][C:33]=1[CH3:34])=[O:27]>C(#N)C>[Cl:1][C:2]1[N:3]=[C:4]2[N:12]([CH2:25][C:26]([C:28]3[CH:29]=[N:30][CH:31]=[CH:32][C:33]=3[CH3:34])=[O:27])[C@H:11]([C:13]([F:14])([F:15])[F:16])[CH2:10][CH2:9][N:5]2[C:6](=[O:8])[CH:7]=1

참가 물질

5

반응물 3

HCID 10796Cesium carbonateHCID 227309902-Bromo-1-(4-methylpyridin-3-yl)ethan-1-one hydrobromideHCID 136238740(S)-8-chloro-2-(trifluoromethyl)-3,4-dihydro-1H-pyrimido[1,2-a]pyrimidin-6(2H)-one

생성물 1

HCID 118194296(8S)-2-chloro-9-[2-(4-methylpyrid-3-yl)-2-oxoethyl]-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one수율 91.9%

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

A suspension of 100 mg (0.394 mmol) of (8S)-2-chloro-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one and 385.42 mg (1.18 mmol) of cesium carbonate in 10 mL of acetonitrile is stirred for 15 minutes at room temperature. 139.57 mg (0.473 mmol) of 2-bromo-1-(4-methylpyrid-3-yl)ethanone hydrobromide are then added. After stirring overnight at room temperature, the reaction mixture is evaporated and the residue is taken up in water and extracted with ethyl acetate. The organic phase is dried over magnesium sulfate and evaporated to dryness to give 140 mg of (8S)-2-chloro-9-[2-(4-methylpyrid-3-yl)-2-oxoethyl]-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one, corresponding to the following characteristics:

후처리

  1. stirringAfter stirring overnight at room temperature
  2. customthe reaction mixture is evaporated
  3. extractionextracted with ethyl acetate
  4. dry with materialThe organic phase is dried over magnesium sulfate
  5. customevaporated to dryness

출처 및 근거

ORD 기록
ord-21ac0c458a944c88b5e937ae55fc09f0
출처 데이터셋
uspto-grants-2016_04
특허 번호
US09321790B2

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