Cesium carbonate → (8S)-2-chloro-9-(2-oxo-2-pyrid-2-ylethyl)-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one

HRID 633762

反応式

HRID 633762 の反応式
[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:33]=[CH:32][CH:31]=[CH:30][N:29]=1)=[O:27]>C(#N)C>[Cl:1][C:2]1[N:3]=[C:4]2[N:12]([CH2:25][C:26](=[O:27])[C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][N:29]=3)[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

参加物

5

反応物 3

HCID 10796Cesium carbonateHCID 27762312-Bromo-1-(2-pyridinyl)-1-ethanone hydrobromideHCID 136238740(S)-8-chloro-2-(trifluoromethyl)-3,4-dihydro-1H-pyrimido[1,2-a]pyrimidin-6(2H)-one

生成物 1

HCID 118194325(8S)-2-chloro-9-(2-oxo-2-pyrid-2-ylethyl)-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one

試薬・触媒・溶媒 1

HCID 6342Acetonitrile溶媒

実験手順

150 mg (0.591 mmol) of (8S)-2-chloro-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one, 578.71 mg (1.77 mmol) of cesium carbonate, 199.40 mg (0.709 mmol) of 2-bromo-1-pyrid-2-ylethanone hydrobromide and 10 mL of acetonitrile were used in the reaction. After purification by chromatography on silica gel (eluent A/B: heptane/EtOAc, gradient A/B: t 0 min 0% B, t 15 min 50% B, t 25 min 70% B), 218 mg of (8S)-2-chloro-9-(2-oxo-2-pyrid-2-ylethyl)-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one were obtained, corresponding to the following characteristics:

後処理

  1. customAfter purification by chromatography on silica gel (eluent A/B: heptane/EtOAc, gradient A/B: t 0 min 0% B, t 15 min 50% B, t 25 min 70% B), 218 mg of (8S)-2-chloro-9-(2-oxo-2-pyrid-2-ylethyl)-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one
  2. customwere obtained, corresponding to the following characteristics

出典と根拠

ORDレコード
ord-3e0be9c6c2ce40d6910c18029fa77772
出典データセット
uspto-grants-2016_04
特許番号
US09321790B2

関連ノート

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