Hydroxyamine hydrochloride → 1-(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl)-4-chloro-3(5-(4-hydroxyimino-3-fluorophenyl)-2-thienylmethyl)benzene

HRID 1514489노트

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HRID 1514489 반응식
[C:1]([O:4][C@@H:5]1[C@@H:10]([O:11][C:12](=[O:14])[CH3:13])[C@H:9]([O:15][C:16](=[O:18])[CH3:17])[C@@H:8]([CH2:19][O:20][C:21](=[O:23])[CH3:22])[O:7][C@H:6]1[C:24]1[CH:29]=[CH:28][C:27]([Cl:30])=[C:26]([CH2:31][C:32]2[S:33][C:34]([C:37]3[CH:42]=[CH:41][C:40](C=O)=[C:39]([F:45])[CH:38]=3)=[CH:35][CH:36]=2)[CH:25]=1)(=[O:3])[CH3:2].Cl.[NH2:47][OH:48]>CN1CCCC1=O.C(OCC)(=O)C.O>[C:1]([O:4][C@@H:5]1[C@@H:10]([O:11][C:12](=[O:14])[CH3:13])[C@H:9]([O:15][C:16](=[O:18])[CH3:17])[C@@H:8]([CH2:19][O:20][C:21](=[O:23])[CH3:22])[O:7][C@H:6]1[C:24]1[CH:29]=[CH:28][C:27]([Cl:30])=[C:26]([CH2:31][C:32]2[S:33][C:34]([C:37]3[CH:42]=[CH:41][C:40](=[N:47][OH:48])[CH:39]([F:45])[CH:38]=3)=[CH:35][CH:36]=2)[CH:25]=1)(=[O:3])[CH3:2]

참가 물질

6

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HCID 443297Hydroxyamine hydrochlorideHCID 866010751-(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl)-4-chloro-3-(5-(3-fluoro-4-formylphenyl)-2-thienylmethyl)benzene

생성물 1

HCID 866010761-(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl)-4-chloro-3(5-(4-hydroxyimino-3-fluorophenyl)-2-thienylmethyl)benzene수율 64.8%

시약·촉매·용매 3

HCID 962Water용매HCID 8857Ethyl Acetate용매HCID 13387N-methyl-2-pyrrolidone용매

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온도
117 °C

실험 절차

1-(2,3,4,6-Tetra-O-acetyl-β-D-glucopyranosyl)-4-chloro-3-(5-(3-fluoro-4-formylphenyl)-2-thienylmethyl)benzene (272 mg) obtained in Example 180-(1) was dissolved in N-methyl-2-pyrrolidone (10 ml) and added thereto was hydroxylamine hydrochloride (34 mg). The mixture was heated under stirring at 117° C. overnight. The reaction solution was cooled and diluted with ethyl acetate and water. The organic layer was washed with water and successively washed with brine. After drying over magnesium sulfate, the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=3:1-2:1) to give 1-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-4-chloro-3-(5-(4-hydroxyimino-3-fluorophenyl)-2-thienylmethyl)benzene (177 mg) as colorless caramel. APCI-Mass m/Z 693/695 (M+NH4). (2) The above 1-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-4-chloro-3-(5-(4-hydroxyimino-3-fluorophenyl)-2-thienylmethyl)benzene (175 mg) was dissolved in chloroform (5 ml) and added thereto was 1,1′-carbonyldiimidazole (46 mg). The mixture was stirred at room temperature overnight. 1,1′-Carbonyldiimidazole (92 mg) was further added thereto, and the mixture was stirred at 40° C. for 6 hours. The reaction solution was cooled and diluted with ethyl acetate and water. The organic layer was separated and successively washed with brine. After drying over magnesium sulfate, the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1) to give 1-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-4-chloro-3-(5-(4-cyano-3-fluorophenyl)-2-thienylmethyl)benzene (158 mg) as colorless caramel. APCI-Mass m/Z 675/677 (M+NH4). (3) The above 1-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-4-chloro-3-(5-(4-cyano-3-fluorophenyl)-2-thienylmethyl)benzene was treated in a manner similar to Example 106-(3) to give desired 1-(β-D-glucopyranosyl)-4-chloro-3-(5-(4-cyano-3-fluorophenyl)-2-thienylmethyl)benzene as pale yellow powder. APCI-Mass m/Z 507/509 (M+NH4).

후처리

  1. additionadded
  2. temperatureThe mixture was heated
  3. temperatureThe reaction solution was cooled
  4. washThe organic layer was washed with water
  5. washsuccessively washed with brine
  6. dry with materialAfter drying over magnesium sulfate
  7. customthe solvent was evaporated under reduced pressure
  8. customThe residue was purified by silica gel column chromatography (hexane:ethyl acetate=3:1-2:1)

출처 및 근거

ORD 기록
ord-678d5c8f438644ee896c391e432f9c6d
출처 데이터셋
uspto-grants-2012_07
특허 번호
US08222219B2

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