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m-Chloroperbenzoic acid → (4-methoxyphenyl)methyl (5S,6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-5,8-dioxo-3-[(2S)-oxolan-2-yl]-5lambda4-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

HRID 1421815
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HRID 1421815 반응식
[NH2:1][C:2]1[S:3][CH:4]=[C:5](/[C:7](=[N:37]/[O:38][CH3:39])/[C:8]([NH:10][C@@H:11]2[C:35](=[O:36])[N:13]3[C:14]([C:23]([O:25][CH2:26][C:27]4[CH:32]=[CH:31][C:30]([O:33][CH3:34])=[CH:29][CH:28]=4)=[O:24])=[C:15]([C@@H:18]4[CH2:22][CH2:21][CH2:20][O:19]4)[CH2:16][S:17][C@H:12]23)=[O:9])[N:6]=1.ClC1C=CC=C(C(OO)=[O:48])C=1>C(OCC)(=O)C>[NH2:1][C:2]1[S:3][CH:4]=[C:5](/[C:7](=[N:37]/[O:38][CH3:39])/[C:8]([NH:10][C@@H:11]2[C:35](=[O:36])[N:13]3[C:14]([C:23]([O:25][CH2:26][C:27]4[CH:32]=[CH:31][C:30]([O:33][CH3:34])=[CH:29][CH:28]=4)=[O:24])=[C:15]([C@@H:18]4[CH2:22][CH2:21][CH2:20][O:19]4)[CH2:16][S@:17](=[O:48])[C@H:12]23)=[O:9])[N:6]=1
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참가 물질

4

반응물 2

HCID 70297m-Chloroperbenzoic acidHCID 141582268(4-methoxyphenyl)methyl (6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-8-oxo-3-[(2S)-oxolan-2-yl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

생성물 1

HCID 141582267(4-methoxyphenyl)methyl (5S,6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-5,8-dioxo-3-[(2S)-oxolan-2-yl]-5lambda4-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate수율 69%

시약·촉매·용매 1

HCID 8857Ethyl Acetate용매2회

실험 절차

4-Methoxybenzyl (6R,7R)-7-[2-(2-aminothiazol-4-yl)-2-(Z)-methoxyiminoacetamido]-3-[(S)-tetrahydrofuran-2-yl]ceph-3-em-4-carboxylate (see example 7) (250 mg, 0.44 mmol) in ethyl acetate (25 ml) was stirred in an ice bath and a solution of m-chloroperbenzoic acid (75 mg, 0.44 mmol) in ethyl acetate (5 ml) was added. After 10 min the reaction mixture was washed with dilute aqueous sodium hydrogen carbonate then water followed by drying (magnesium sulphate) and evaporation under reduced pressure. The residue was chromatographed on silica gel eluting with acetone/ethyl acetate mixtures to give the title compound as a white solid (179 mg, 69%); νmax (CHCl3) 1800, 1730, 1680 and 1610 cm-1 ; δH (CDCl3) 1.48-1.64 (1H,m), 1.89-2.00 (2H,m), 2.33-2.47 (1H,m), 3.29 and 3.75 (2H, ABq, J 19 Hz), 3.82 (3H,s), 3.84-3.96 (2H,m), 4.09 (3H,s), 5.06 (1H,dd, J 7, 9 Hz), 5.22 (2H,s), 5.55-5.8 (1H, br s, exch), 6.16 (1H,dd, J 4.5, 10 Hz), 6.91 (2H,d, J 7.9 Hz), 6.98 (1H,s), 7.35 (2H,d, J 9 Hz) and 7.55-7.65 (1H,br, exch). [Mass spectrum: +ve ion (thioglycerol) MH+ (590)].

후처리

  1. washAfter 10 min the reaction mixture was washed with dilute aqueous sodium hydrogen carbonate
  2. customby drying
  3. custom(magnesium sulphate) and evaporation under reduced pressure
  4. customThe residue was chromatographed on silica gel eluting with acetone/ethyl acetate

출처 및 근거

ORD 기록
ord-bcb8e724d7104b12a3c7af313a4f4efc
출처 데이터셋
uspto-grants-2000_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06077952

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