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Sodium Methoxide → HCID 178525026、化合物

HRID 249599
ノート
印刷プレビュー

反応式

HRID 249599 の反応式
C([S:4][CH2:5][S:6][C:7]1[N:8]=[N:9][NH:10][CH:11]=1)(=O)C.C[O-].[Na+].[C:15]1([CH:21]([O:28][C:29]([C:31]2[N:36]3[C:37](=[O:61])[C@@H:38](NC(=O)/C(/C4N=C(NC(OC(C)(C)C)=O)SC=4)=N\OCC=C)[C@H:35]3[S:34][CH2:33][C:32]=2OS(C)(=O)=O)=[O:30])[C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1>CN(C)C=O.CO.Cl.O>[C:15]1([CH:21]([O:28][C:29]([C:31]2[N:36]3[C:37](=[O:61])[CH2:38][C@H:35]3[S:34][CH2:33][C:32]=2[S:4][CH2:5][S:6][C:7]2[N:8]=[N:9][NH:10][CH:11]=2)=[O:30])[C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

8

反応物 3

HCID 10942334Sodium MethoxideHCID 88301273benzhydryl (6R,7R)-7-[[(2Z)-2-[2-[(2-methylpropan-2-yl)oxycarbonylamino]-1,3-thiazol-4-yl]-2-prop-2-enoxyiminoacetyl]amino]-3-methylsulfonyloxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylateHCID 178477162HCID 178477162、化合物

生成物 1

HCID 178525026HCID 178525026、化合物収率 83.6%

試薬・触媒・溶媒 4

HCID 313
Hydrochloric Acid
溶媒
HCID 887Methanol溶媒
HCID 962Water溶媒
HCID 6228Dimethylformamide溶媒2 回

反応条件

温度
-78 °C

実験手順

To a solution of 4-acetylthiomethylthio-1,2,3-triazole (230 mg : 1.22 mMol.) in dimethylformamide (6 ml) is dropwise added a 1.26N-sodium methoxide in methanol (1.9 ml) at -60° C., and the mixture is stirred at the same temperature for 25 minutes, and cooled to -78° C. To the reaction mixture is dropwise added a solution of 7β-[(Z)-2-(2-t-butoxycarbonylaminothiazol -4-yl)-2-(2-propenyloxyimino)acetamido]-3 methanesulfonyloxy-3-cephem-4-carboxylic acid diphenylmethyl ester (770 mg : 1 mMol.) in dimethylformamide (3 ml), and the mixture is stirred at the same temperature for 40 minutes. The reaction mixture is diluted with 1N-hydrochloric acid (2 ml) and water (50 ml), and extracted with ethyl acetate. The extract is washed with water, dried over sodium sulfate, and purified by silica gel chromatography (toluene : ethyl acetate=2:1). The eluted material is crystallized from toluene to give 7β-](Z)-2-(2-t-butoxycarbonylaminothiazol-4-yl) 2-(2propentyloxyimino)acetamido]-3-(1,2,3-triazol-4-ylthiomethylthio) -3-cephem-4- carboxylic acid diphenylmethyl ester (415 mg) as colorless crystals. Yield : 51%. mp. 167° to 170° C. (decomposition).

後処理

  1. stirringthe mixture is stirred at the same temperature for 40 minutes
  2. extractionextracted with ethyl acetate
  3. washThe extract is washed with water
  4. dry with materialdried over sodium sulfate
  5. custompurified by silica gel chromatography (toluene : ethyl acetate=2:1)
  6. customThe eluted material is crystallized from toluene

出典と根拠

ORDレコード
ord-eab4705af5634e5abc0734bfb84f0d20
出典データセット
uspto-grants-1993_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05214037

反応ノート

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