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Dimethylformamide → (R)-3-[1-(4,6-dimethyl-1,2-benzisothiazol-3-ylmethyl)-2,4-dioxo-1,4-dihydro-2H-quinazolin-3-yl]-butyric acid methyl ester

HRID 388469
ノート
印刷プレビュー

反応式

HRID 388469 の反応式
[CH3:1][O:2][C:3](=[O:19])[CH2:4][C@H:5]([N:7]1[C:16](=[O:17])[C:15]2[C:10](=[CH:11][CH:12]=[CH:13][CH:14]=2)[NH:9][C:8]1=[O:18])[CH3:6].Br[CH2:21][C:22]1[C:26]2[C:27]([CH3:32])=[CH:28][C:29]([CH3:31])=[CH:30][C:25]=2[S:24][N:23]=1.C(=O)([O-])[O-].[K+].[K+].CN(C=O)C>O>[CH3:1][O:2][C:3](=[O:19])[CH2:4][C@H:5]([N:7]1[C:16](=[O:17])[C:15]2[C:10](=[CH:11][CH:12]=[CH:13][CH:14]=2)[N:9]([CH2:21][C:22]2[C:26]3[C:27]([CH3:32])=[CH:28][C:29]([CH3:31])=[CH:30][C:25]=3[S:24][N:23]=2)[C:8]1=[O:18])[CH3:6]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 584973913-Bromomethyl-4,6-dimethyl-benzo[d]isothiazoleHCID 68728457(R)-3-(2,4-Dioxo-1,4-dihydro-2H-quinazolin-3-yl)-butyric acid methyl ester

生成物 1

HCID 68751053(R)-3-[1-(4,6-dimethyl-1,2-benzisothiazol-3-ylmethyl)-2,4-dioxo-1,4-dihydro-2H-quinazolin-3-yl]-butyric acid methyl ester収率 93%

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

(R)-3-(2,4-Dioxo-1,4-dihydro-2H-quinazolin-3-yl)-butyric acid methyl ester (124 mg, 0.5 mmol) (prepared according to example 4, steps 1-2), 3-bromomethyl-4,6-dimethyl-1,2-benzisothiazole (150 mg, 0.59 mmol) (prepared according to example 5, steps 1-6), and potassium carbonate (345.5 mg, 2.5 mmol) are combined in a reaction vial and DMF (1 mL) is added. The reaction mixture is agitated at ambient temperature for 18 hours then diluted with water (15 mL). The product is isolated by filtration and purified by flash chromatography using an ethyl acetate/hexane gradient to provide (R)-3-[1-(4,6-dimethyl-1,2-benzisothiazol-3-ylmethyl)-2,4-dioxo-1,4-dihydro-2H-quinazolin-3-yl]-butyric acid methyl ester (196 mg, 93%).

後処理

  1. additionis added
  2. customThe product is isolated by filtration
  3. custompurified by flash chromatography

出典と根拠

ORDレコード
ord-c6a92ba26d4c4c9f9edd014e772ef8a5
出典データセット
uspto-grants-2013_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08377949B2

反応ノート

読み込み中…

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