Water → Methyl 6-[4,5-dichloro-2-methyl-1H-imidazol-1-ylmethyl]-1,2,3,4-tetrahydro-3-methyl-1-(2-methylpropyl)-2,4-dioxo-thieno[2,3-d]pyrimidine-5-carboxylate

HRID 131555ノート

反応式

HRID 131555 の反応式
[Cl:1][C:2]1[N:3]=[C:4]([CH3:8])[NH:5][C:6]=1[Cl:7].[H-].[Na+].Br[CH2:12][C:13]1[S:28][C:16]2[N:17]([CH2:24][CH:25]([CH3:27])[CH3:26])[C:18](=[O:23])[N:19]([CH3:22])[C:20](=[O:21])[C:15]=2[C:14]=1[C:29]([O:31][CH3:32])=[O:30].O>O1CCCC1>[Cl:1][C:2]1[N:3]=[C:4]([CH3:8])[N:5]([CH2:12][C:13]2[S:28][C:16]3[N:17]([CH2:24][CH:25]([CH3:27])[CH3:26])[C:18](=[O:23])[N:19]([CH3:22])[C:20](=[O:21])[C:15]=3[C:14]=2[C:29]([O:31][CH3:32])=[O:30])[C:6]=1[Cl:7]

参加物

6

反応物 4

HCID 962WaterHCID 24758Sodium hydrideHCID 3123904,5-Dichloro-2-methyl-1H-imidazoleHCID 16102871Methyl 6-bromomethyl-1-isobutyl-3-methyl-2,4-dioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidine-5-carboxylate

生成物 1

HCID 11453923Methyl 6-[4,5-dichloro-2-methyl-1H-imidazol-1-ylmethyl]-1,2,3,4-tetrahydro-3-methyl-1-(2-methylpropyl)-2,4-dioxo-thieno[2,3-d]pyrimidine-5-carboxylate

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒3 回

実験手順

4,5-Dichloro-2-methylimidazole (1.3 g) in dry tetrahydrofuran (20 ml) was added dropwise to a suspension of sodium hydride (0.34 g, 60%) in dry tetrahydrofuran (20 ml) at room temperature under nitrogen. After 15 min, a solution of the product of step b) (3.35 g) in dry tetrahydrofuran (20 ml) was added dropwise and the reaction was stirred for 3 h at room temperature. The solution was poured into water and extracted with ethyl acetate. The combined extracts were dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was purified by flash silica chromatography eluting with a gradient 50-100% ethyl acetate in isohexane to give the sub-title compound as a white solid (2.28 g). MS (APCI) 459/460 [M+H]+. δ 1HCDCl3 0.97 (6H,d), 2.26 (1H, septet), 2.38(3H,s), 3.39 (3H,s), 3.73 (2H,d), 3.99 (3H,s), 5.26 (2H,s).

後処理

  1. extractionextracted with ethyl acetate
  2. dry with materialThe combined extracts were dried over magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by flash silica chromatography
  6. washeluting with a gradient 50-100% ethyl acetate in isohexane

出典と根拠

ORDレコード
ord-c0deaf4660514eaaa2f69860ba8ba17d
出典データセット
uspto-grants-2008_06
特許番号
US07384950B2

反応ノート

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