Acetic Anhydride → N4-Acetyl-2'-deoxycytidine

HRID 1725

反応式

HRID 1725 の反応式
[C@@H:1]1([N:9]2[CH:16]=[CH:15][C:13]([NH2:14])=[N:12][C:10]2=[O:11])[O:8][C@H:5]([CH2:6][OH:7])[C@@H:3]([OH:4])[CH2:2]1.[C:17](OC(=O)C)(=[O:19])[CH3:18]>CN(C)C=O>[C:17]([NH:14][C:13]1[CH:15]=[CH:16][N:9]([C@@H:1]2[O:8][C@H:5]([CH2:6][OH:7])[C@@H:3]([OH:4])[CH2:2]2)[C:10](=[O:11])[N:12]=1)(=[O:19])[CH3:18]

参加物

4

反応物 2

HCID 7918Acetic AnhydrideHCID 13711Deoxycytidine

生成物 1

HCID 11346228N4-Acetyl-2'-deoxycytidine収率 98.2%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

To 61.29 g (270 mmol) of the material of Example I dissolved in 1300 ml of anhydrous N,N-dimethylformamide ("DMF") (Aldrich; Cat. No. 22, 70506), was added 28 ml (296 mmol) of acetic anhydride (Aldrich; Cat. No. 11,004-3), and the resulting mixture was stirred at room temperature for 20 hrs. DMF was removed under reduced pressure, and the resulting residue was treated with the excess of 100 ml dimethyl ether; 71.4 g (98% yield) of a crystalline product was obtained and collected by filtration, washed thoroughly with dimethyl ether, and dried over P2O5 for 3 hrs. This product had a melting point of 150°-170° C.; the published melting point for this product 154°-176° C.

後処理

  1. customDMF was removed under reduced pressure
  2. additionthe resulting residue was treated with the excess of 100 ml dimethyl ether

出典と根拠

ORDレコード
ord-61e90dfc436e46c68b3d763ba8118cbb
出典データセット
uspto-grants-1998_03
特許番号
US05726301

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