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Aluminum(III) Chloride → HCID 178481985、化合物

HRID 1707486
ノート
印刷プレビュー

反応式

HRID 1707486 の反応式
C1(C([O:14][C:15]([C:17]2[N:22]3[C:23](=[O:63])[C@@H:24]([NH:25][C:26](=[O:62])/[C:27](/[C:49]4[N:50]=[C:51]([NH:54]C(OC(C)(C)C)=O)[S:52][CH:53]=4)=[N:28]\[O:29]C(C4C=CC=CC=4)(C4C=CC=CC=4)C4C=CC=CC=4)[C@H:21]3[S:20][CH2:19][C:18]=2[CH2:64][S:65][C:66]2[N:67]([CH3:71])[N:68]=[N:69][CH:70]=2)=[S:16])C2C=CC=CC=2)C=CC=CC=1.[Cl-].[Al+3].[Cl-].[Cl-]>C1(OC)C=CC=CC=1.[N+](C)([O-])=O.Cl.O>[NH2:54][C:51]1[S:52][CH:53]=[C:49](/[C:27](=[N:28]/[OH:29])/[C:26]([NH:25][C@@H:24]2[C:23](=[O:63])[N:22]3[C:17]([C:15]([OH:14])=[S:16])=[C:18]([CH2:64][S:65][C:66]4[N:67]([CH3:71])[N:68]=[N:69][CH:70]=4)[CH2:19][S:20][C@H:21]23)=[O:62])[N:50]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 2

HCID 6451240Aluminum(III) ChlorideHCID 141566154O-benzhydryl (6R,7R)-7-[[(2Z)-2-[2-[(2-methylpropan-2-yl)oxycarbonylamino]-1,3-thiazol-4-yl]-2-trityloxyiminoacetyl]amino]-3-[(3-methyltriazol-4-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbothioate

生成物 1

HCID 178481985HCID 178481985、化合物収率 82.2%

試薬・触媒・溶媒 4

HCID 313Hydrochloric Acid溶媒
HCID 962Water溶媒
HCID 6375Nitromethane溶媒
HCID 7519Anisole溶媒2 回

実験手順

To a solution of 7β-[(Z)-2-(2-t-butoxycarbonylaminothiazol-4-yl)-2-trityloxyiminoacetamido]-3-(3-methyl-1,2,3-triazol-4-yl) thiomethylthio-3-cephem-4-carboxylic acid diphenylmethyl ester (900 mg: 0.869 mMol.) in a mixture of anisole (4 ml) and nitromethane (16 ml) is added a solution of aluminum chloride (924 mg: 6.95 mMol.) in anisole (2 ml) at -40° C., and the mixture is stirred for 1 hour at -40°--30° C. The reaction mixture is diluted with 1N-hydrochloric acid (7 ml) and water and washed with ethyl acetate. The aqueous layer is concentrated under reduced pressure to remove organic solvent and passed through a column of styrene-divinylbenzene copolymer adsorbent. The product is eluted with methanol-water (4:1) to give 7β-[(Z)-2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetamido]-3-(3-methyl-1,2,3-triazol-4-yl)thiomethylthio-3-cephem-4-carboxylic acid as pale yellow powder (366 mg). Yield: 80%.

後処理

  1. washwashed with ethyl acetate
  2. concentrationThe aqueous layer is concentrated under reduced pressure
  3. customto remove organic solvent
  4. washThe product is eluted with methanol-water (4:1)

出典と根拠

ORDレコード
ord-d5b85aa4973243ed8898314cae0a2f9e
出典データセット
uspto-grants-1994_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05352792

反応ノート

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