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Diisopropyl Ether → HCID 178418649、化合物

HRID 5530
ノート
印刷プレビュー

反応式

HRID 5530 の反応式
[OH:1][C:2]1[C:7]([OH:8])=[CH:6][N:5]=[C:4]([C:9]([OH:11])=O)[CH:3]=1.ON1C2C=CC=CC=2N=N1.C1(N=C=NC2CCCCC2)CCCCC1.[NH2:37][C:38]1[S:42][N:41]=[C:40]([C:43](=[N:67][O:68][CH3:69])[C:44]([NH:46][C@@H:47]2[C:65](=[O:66])[N:49]3[C:50]([C:62]([O-:64])=[O:63])=[C:51]([CH2:54][N+:55]4([CH3:61])[CH2:60][CH2:59][NH:58][CH2:57][CH2:56]4)[CH2:52][S:53][C@H:48]23)=[O:45])[N:39]=1.C[Si](C)(C)NC(=O)C.C(OC(C)C)(C)C>CS(C)=O>[NH2:37][C:38]1[S:42][N:41]=[C:40]([C:43](=[N:67][O:68][CH3:69])[C:44]([NH:46][C@@H:47]2[C:65](=[O:66])[N:49]3[C:50]([C:62]([O-:64])=[O:63])=[C:51]([CH2:54][N+:55]4([CH3:61])[CH2:60][CH2:59][N:58]([C:9]([C:4]5[CH:3]=[C:2]([OH:1])[C:7]([OH:8])=[CH:6][N:5]=5)=[O:11])[CH2:57][CH2:56]4)[CH2:52][S:53][C@H:48]23)=[O:45])[N:39]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

8

反応物 6

HCID 7914Diisopropyl EtherHCID 10868DicyclohexylcarbodiimideHCID 25989Acetamide, N-(trimethylsilyl)-HCID 757711-HydroxybenzotriazoleHCID 1317181317beta-[2-(5-Amino-1,2,4-thiadiazol-3-yl)-2-methoxyiminoacetamido]-3-(1-methyl-1-piperazinio)methyl-3-cephem-4-carboxylateHCID 178418665HCID 178418665、化合物

生成物

1
HCID 178418649HCID 178418649、化合物収率 3.9%

試薬・触媒・溶媒 1

HCID 679Dimethyl Sulfoxide溶媒2 回

実験手順

To a solution of 4,5-dihydroxy-2-pyridinecarboxylic acid (3.1 g) and 1-hydroxybenzotriazole (4.0 g) in dimethyl sulfoxide (30 ml) was added N,N'-dicyclohexylcarbodiimide (6.2 g). After being stirred at room temperature for 1 hour, the reaction mixture was added to a solution of 7β-[2-(5-amino-1,2,4-thiadiazol-3-yl)-2-methoxyiminoacetamido]-3-(1-methyl-1-piperazinio)methyl-3-cephem-4-carboxylate (syn isomer) (10.0 g) and N-trimethylsilylacetamide (3.0 g) in dimethyl sulfoxide (50 ml), and the stirring was continued for 30 minutes. The mixture was added dropwise to diisopropyl ether (1.5 l) and the resulting precipitate was collected by filtration, which was dissolved in an aqueous solution of sodium bicarbonate. After the insoluble material was filtered off, the filtrate was adjusted to pH 3.0 with 1N hydrochloric acid and subjected to column chromatography on "Diaion HP-20" with 5% aqueous isopropyl alcohol as an eluent. The eluate was lyophilized to give 7β-[2-(5-amino-1,2,4-thiadiazol-3-yl)-2-methoxyiminoacetamido]-3-[1-methyl-4-(4,5-dihydroxy-2-pyridylcarbonyl)-1-piperazinio]methyl-3-cephem-4-carboxylate (syn isomer) (0.5 g).

後処理

  1. waitthe stirring was continued for 30 minutes
  2. filtrationthe resulting precipitate was collected by filtration, which
  3. dissolutionwas dissolved in an aqueous solution of sodium bicarbonate
  4. filtrationAfter the insoluble material was filtered off

出典と根拠

ORDレコード
ord-d576ec8dc5e942d7a4fd333adedd0dc3
出典データセット
uspto-grants-1993_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05244890

反応ノート

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