Methane → Deacetylcephalosporin C

HRID 462807

反応式

HRID 462807 の反応式
C(Cl)(Cl)Cl.CC([O:8][CH2:9][C:10]1[CH2:29][S:28][CH:13]2[C@H:14]([NH:17][C:18]([CH2:20][CH2:21][CH2:22][CH:23]([NH2:27])[C:24]([OH:26])=[O:25])=[O:19])[C:15](=[O:16])[N:12]2[C:11]=1[C:30]([O-:32])=[O:31])=O.[Na+].CC(OCC1CS[C@@H]2[C@H](NC(CCC[C@@H](N)C(O)=O)=O)C(=O)N2C=1C(O)=O)=O.C>C(O)C>[CH2:29]1[S:28][C@@H:13]2[C@H:14]([NH:17][C:18]([CH2:20][CH2:21][CH2:22][C@@H:23]([NH2:27])[C:24]([OH:26])=[O:25])=[O:19])[C:15](=[O:16])[N:12]2[C:11]([C:30]([OH:32])=[O:31])=[C:10]1[CH2:9][OH:8]

参加物

6

反応物 4

HCID 297MethaneHCID 6212ChloroformHCID 65536Cephalosporin CHCID 23682219sodium (7R)-3-(acetyloxymethyl)-7-[(5-amino-5-carboxypentanoyl)amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

生成物 1

HCID 160577Deacetylcephalosporin C

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

To the wet mycelia (10 g) was added a small volume of chloroform. The mixture was allowed to stand at ambient temperature for 30 minutes. To the mixture was added distilled water (20 ml). After allowing to stand at ambient temperature for a day, the mixture was centrifuged to give enzyme extracts (20 ml). The enzyme extracts was added to an aqueous solution (300 ml) containing cephalosporin C sodium.dihydrate (25 mg/ml). The reaction mixture was stirred at pH 4.5 and 30° C. for 10 hours until cephalosporin C in the mixture disappeared. To the resultant mixture was added activated charcoal (3 g) and the mixture was filtered. The filtrate was adjusted to pH 7.0 and concentrated under reduced pressure to give crystals, to which was added a small volume of 75% aqueous ethanol and the mixture was triturated. The crystals were separated by filtration and dried in vacuo to give crystalline deacetylcephalosporin C (3.6 g).

後処理

  1. additionTo the mixture was added
  2. distillationdistilled water (20 ml)
  3. waitto stand at ambient temperature for a day
  4. customto give enzyme extracts (20 ml)
  5. filtrationthe mixture was filtered
  6. concentrationconcentrated under reduced pressure
  7. customto give crystals
  8. customthe mixture was triturated
  9. customThe crystals were separated by filtration
  10. customdried in vacuo

出典と根拠

ORDレコード
ord-3774ca5241214deeac08afcb933a6adb
出典データセット
uspto-grants-1985_05
特許番号
US04517299

関連ノート

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