Pyridine → HCID 178477371、化合物

HRID 1395414

反応式

HRID 1395414 の反応式
[C:1]([O:5][C:6]([NH:8][CH:9]([C:13]1[N:14]=[C:15]([NH:18][C:19](=[O:22])[CH2:20][Cl:21])[S:16][CH:17]=1)[C:10]([OH:12])=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].P(Cl)(Cl)(Cl)(Cl)Cl.[C:29]1([CH:35]([O:42][C:43]([C:45]2[N:50]3[C:51](=[O:54])[C@@H:52]([NH2:53])[C@H:49]3[S:48][CH2:47][C:46]=2[CH:55]([S:57][C:58]2[NH:62][N:61]=[N:60][N:59]=2)[CH3:56])=[O:44])[C:36]2[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=2)[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1.N1C=CC=CC=1>C(Cl)Cl>[C:29]1([CH:35]([O:42][C:43]([C:45]2[N:50]3[C:51](=[O:54])[C@@H:52]([NH:53][C:10](=[O:12])[CH:9]([NH:8][C:6]([O:5][C:1]([CH3:2])([CH3:3])[CH3:4])=[O:7])[C:13]4[N:14]=[C:15]([NH:18][C:19](=[O:22])[CH2:20][Cl:21])[S:16][CH:17]=4)[C@H:49]3[S:48][CH2:47][C:46]=2[CH:55]([S:57][C:58]2[NH:62][N:61]=[N:60][N:59]=2)[CH3:56])=[O:44])[C:36]2[CH:37]=[CH:38][CH:39]=[CH:40][CH:41]=2)[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=1

参加物

6

反応物 4

HCID 1049PyridineHCID 24819Phosphorus pentachlorideHCID 12763201alpha-t-Butyloxycarbonylamino-alpha-[2-(chloroacetamido)thiazol-4-yl)acetic acidHCID 178477368HCID 178477368、化合物

生成物 1

HCID 178477371HCID 178477371、化合物収率 62.2%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

To a suspension of 349 mg of α-t-butyloxycarbonylamino-α-[2-(chloroacetamido)thiazol-4-yl ]acetic acid in 5 ml of methylene chloride is added 249 mg of phosphorous pentachloride, and the mixture is stirred at room temperature. The mixture is added dropwise under stirring to the solution of 494 mg of 7β-amino-3-(1-methyl-1H-tetrazol-5-ylthiomethyl)-3-cephem-4-carboxylic acid diphenylmethyl ester dissolved in 5 ml of methylene chloride, followed by the addition of 474 mg of pyridine. After that, the stirring is continued for further 1 hour at room temperature. The reaction solution is washed with 0.5 N hydrochloric acid and then with wafer, and dried. The oily product obtained by the distillation of the solvent is purified by a column chromatography packed with silica gel. The procedure gives 513 mg of 7β-{α-t-butyloxycarbonylamino-α-[2-(chloroacetamido)thiazol-4-yl)acetamido}-3-(1-methyl-1H-tetrazol-5-ylthiomethyl)-3-cephem-4-carboxylic acid diphenylmethyl ester.

後処理

  1. additionThe mixture is added dropwise
  2. washThe reaction solution is washed with 0.5 N hydrochloric acid
  3. customwith wafer, and dried
  4. customThe oily product obtained by the distillation of the solvent
  5. customis purified by a column chromatography

出典と根拠

ORDレコード
ord-0b23d48082a641f58ea9beaa148af868
出典データセット
uspto-grants-1980_05
特許番号
US04203899

関連ノート

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