反応式
[ClH:1].[CH3:2][O:3]/[N:4]=[C:5](\[C:12]([NH:14][C@@H:15]1[C:18](=[O:19])[N:17]2[C:20]([C:33]([OH:35])=[O:34])=[C:21]([CH2:24][S:25][C:26]([C:28]3[O:32][CH:31]=[CH:30][CH:29]=3)=[O:27])[CH2:22][S:23][C@H:16]12)=[O:13])/[C:6]1[N:10]=[C:9]([NH2:11])[S:8][CH:7]=1>O.CC(C)=O>[CH3:2][O:3]/[N:4]=[C:5](\[C:12]([NH:14][C@@H:15]1[C:18](=[O:19])[N:17]2[C:20]([C:33]([OH:35])=[O:34])=[C:21]([CH2:24][S:25][C:26]([C:28]3[O:32][CH:31]=[CH:30][CH:29]=3)=[O:27])[CH2:22][S:23][C@H:16]12)=[O:13])/[C:6]1[N:10]=[C:9]([NH2:11])[S:8][CH:7]=1.[ClH:1]参加物
4
実験手順
The preparation of crystalline ceftiofur hydrochloride is considered to involve a typical crystallization. Several methods for the preparation of ceftiofur hydrochloride are described in U.S. Pat. No. 4,902,683. In one readily used method, once the hydrochloride salt is obtained by adding hydrochloric acid to a water/acetone solution of ceftiofur, the resulting solution is cooled slowly to obtain crystalline ceftiofur hydrochloride.
後処理
- temperaturethe resulting solution is cooled slowly
出典と根拠
- ORDレコード
- ord-c8c261744d074e3ca4caa76f3e176479
- 出典データセット
- uspto-grants-1998_02
- 特許番号
- US05721359
関連ノート
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