Hydrochloric Acid → 7beta-Amino-3-[3-amino-2-(2-hydroxyethyl)-1-pyrazolio]methyl-3-cephem-4-carboxylate trihydrochloride

HRID 248339ノート

反応式

HRID 248339 の反応式
[ClH:1].[NH2:2][C@@H:3]1[C:27](=[O:28])[N:5]2[C:6]([C:24]([O-:26])=[O:25])=[C:7]([CH2:10][N+:11]3[N:12]([CH2:19][CH2:20][O:21]C=O)[C:13]([NH:16]C=O)=[CH:14][CH:15]=3)[CH2:8][S:9][C@H:4]12.C(OCC)(=O)C>CO>[ClH:1].[ClH:1].[ClH:1].[NH2:2][C@@H:3]1[C:27](=[O:28])[N:5]2[C:6]([C:24]([O-:26])=[O:25])=[C:7]([CH2:10][N+:11]3[N:12]([CH2:19][CH2:20][OH:21])[C:13]([NH2:16])=[CH:14][CH:15]=3)[CH2:8][S:9][C@H:4]12

参加物

5

反応物 3

HCID 313Hydrochloric AcidHCID 8857Ethyl AcetateHCID 149965697beta-Amino-3-[3-formamido-2-(2-formyloxyethyl)-1-pyrazolio]methyl-3-cephem-4-carboxylate

生成物 1

HCID 1317165287beta-Amino-3-[3-amino-2-(2-hydroxyethyl)-1-pyrazolio]methyl-3-cephem-4-carboxylate trihydrochloride

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

Concentrated hydrochloric acid (5.67 ml) was added to a mixture of di(trifluoroacetic acid) salt of 7β-amino-3-[3-formamido-2-(2-formyloxyethyl)-1-pyrazolio]methyl-3-cephem-4-carboxylate (10 g) in methanol (50 ml ) at ambient temperature. After being stirred at the same temperature for 3 hours, the mixture was added dropwise to ethyl acetate (500 ml). The resultant precipitate was collected by filtration to give 7β-amino-3-[3-amino-2-(2-hydroxyethyl)-1-pyrazolio]methyl-3-cephem-4-carboxylate trihydrochloride (6.1 g).

後処理

  1. filtrationThe resultant precipitate was collected by filtration

出典と根拠

ORDレコード
ord-2766ea0e58cd4130b11f3ebcad3928e9
出典データセット
uspto-grants-1993_05
特許番号
US05210080

反応ノート

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