Chloromethyl pivalate → 3-[(Acetyloxy)methyl]-7-[[2-carboethoxy-2-(1-pyrryl)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid pivaloyloxymethyl ester

HRID 26323

反応式

HRID 26323 の反応式
[Na].[C:2]([O:5][CH2:6][C:7]1[CH2:14][S:13][CH:12]2[N:9]([C:10](=[O:29])[CH:11]2[NH:15][C:16](=[O:28])[CH:17]([C:23]([O:25][CH2:26][CH3:27])=[O:24])[N:18]2[CH:22]=[CH:21][CH:20]=[CH:19]2)[C:8]=1[C:30]([OH:32])=[O:31])(=[O:4])[CH3:3].[C:33]([O:39][CH2:40]Cl)(=[O:38])[C:34]([CH3:37])([CH3:36])[CH3:35]>CN(C)C=O.C(OCC)(=O)C>[C:33]([O:39][CH2:40][O:31][C:30]([C:8]1[N:9]2[CH:12]([S:13][CH2:14][C:7]=1[CH2:6][O:5][C:2](=[O:4])[CH3:3])[CH:11]([NH:15][C:16](=[O:28])[CH:17]([C:23]([O:25][CH2:26][CH3:27])=[O:24])[N:18]1[CH:19]=[CH:20][CH:21]=[CH:22]1)[C:10]2=[O:29])=[O:32])(=[O:38])[C:34]([CH3:37])([CH3:36])[CH3:35]

参加物

6

実験手順

The sodium salt of 3-[(acetyloxy)methyl]-7-[[2-carboethoxy-2-(1-pyrryl)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (3 grams) was added to about 40 ml of dry dimethylformamide (DMF) and stirred for about 30 minutes. Then 4.0 ml of chloromethyl pivalate in 5 ml of DMF was added. The mixture was stirred for about 4 hours at room temperature. This mixture is diluted with ethyl acetate and thoroughly washed with water. The ethyl acetate portion is dried over sodium sulfate, filtered and evaporated to give the title compound.

後処理

  1. stirringThe mixture was stirred for about 4 hours at room temperature
  2. washthoroughly washed with water
  3. dry with materialThe ethyl acetate portion is dried over sodium sulfate
  4. filtrationfiltered
  5. customevaporated

出典と根拠

ORDレコード
ord-49c37863b813497b83c0e60b15465c02
出典データセット
uspto-grants-1979_04
特許番号
US04148998

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