反応 #1914845

ord-cdacb88d8c1b43aabac33e30350acad4

反応方程式

O=C(Cl)CCCBr
4-bromobutanoylchloride
O=C([O-])[O-].[K+].[K+]
potassium carbonate
C[C@]12CCC(=O)C=C1CC[C@@H]1[C@@H]2[C@@H](O)C[C@@]2(C)[C@H]1CC[C@]2(O)C(=O)CO
hydrocortisone
→
C[C@]12CCC(=O)C=C1CC[C@@H]1[C@@H]2[C@@H](O)C[C@@]2(C)[C@H]1CC[C@]2(O)C(=O)CO.O=C([O-])CCCBr
Hydrocortisone 4-bromobutanoate

反応物

O=C(Cl)CCCBr
4-bromobutanoylchloride
O=C([O-])[O-].[K+].[K+]
potassium carbonate
C[C@]12CCC(=O)C=C1CC[C@@H]1[C@@H]2[C@@H](O)C[C@@]2(C)[C@H]1CC[C@]2(O)C(=O)CO
hydrocortisone

試薬

なし

反応条件

詳細条件
See reaction.notes.procedure_details.

後処理

  1. 1
    乾燥dried over P2O5
  2. 2
    workup.ADDITIONThe solution was treated with water
  3. 3
    その他the organic phase was separated
  4. 4
    乾燥dried (Na2SO4)

実験手順

Five portions of 4-bromobutanoylchloride (0.35 ml×5) and potassium carbonate (0.4 g×5) were added in 24 hours to a solution of hydrocortisone (1 g) in CHCl, dried over P2O5 and stirred for 5 days. The solution was treated with water, the organic phase was separated, dried (Na2SO4) and deprived of the solvent at reduced pressure.

出典

DOI: 10.6084/m9.figshare.5104873.v1特許: US07056905B2uspto-grants-2006_06