Tetrahydrofuran → (4R)-3-((3R)-3-(3-Isoxazolyl)-3-(3-((phenylmethyl)oxy)phenyl)propanoyl)-4-(phenylmethyl)-1,3-oxazolidin-2-one

HRID 1662572ノート

反応式

HRID 1662572 の反応式
C(OC(OC(C)(C)C)=O)(O[C:4](C)(C)[CH3:5])=O.[N+:16]([CH2:19][C@@H:20]([C:37]1[CH:42]=[CH:41][CH:40]=[C:39]([O:43][CH2:44][C:45]2[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=2)[CH:38]=1)[CH2:21][C:22]([N:24]1[C@H:28]([CH2:29][C:30]2[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=2)[CH2:27][O:26][C:25]1=[O:36])=[O:23])([O-])=[O:17].C(Br)=C.C1COCC1>CN(C)C1C=CN=CC=1.CCOC(C)=O>[O:17]1[CH:5]=[CH:4][C:19]([C@@H:20]([C:37]2[CH:42]=[CH:41][CH:40]=[C:39]([O:43][CH2:44][C:45]3[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=3)[CH:38]=2)[CH2:21][C:22]([N:24]2[C@H:28]([CH2:29][C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=3)[CH2:27][O:26][C:25]2=[O:36])=[O:23])=[N:16]1

参加物

7

反応物 4

HCID 8028TetrahydrofuranHCID 11641BromoetheneHCID 90495Di-tert-butyl dicarbonateHCID 57706543(4R)-3-((3R)-4-Nitro-3-(3-((phenylmethyl)oxy)phenyl)butanoyl)-4-(phenylmethyl)-1,3-oxazolidin-2-one

生成物 1

HCID 57706758(4R)-3-((3R)-3-(3-Isoxazolyl)-3-(3-((phenylmethyl)oxy)phenyl)propanoyl)-4-(phenylmethyl)-1,3-oxazolidin-2-one収率 75.6%

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒HCID 8857Ethyl Acetate溶媒

実験手順

At room temperature, di-t-butyl dicarbonate (0.502 g, 2.30 mmol) was added to a solution of (R)-4-benzyl-3-((R)-3-(3-(benzyloxy)phenyl)-4-nitrobutanoyl)oxazolidin-2-one (94.1B) (0.727 g, 1.53 mmol), vinyl bromide, (1.0 M solution in THF (16.9 mL, 16.9 mmol), N,N-dimethylpyridin-4-amine (DMAP) (0.0187 g, 0.153 mmol) and TEA (0.256 mL, 1.84 mmol). The mixture was stirred at room temperature for 24 hours. The reaction was then diluted with EtOAc (200 mL) and washed with sodium bicarbonate solution and brine. The organic phase was dried over anhydrous sodium sulfate. After removing solvent, the residue was purified by flash chromatography (silica gel, 1:2 EtOAc/hexane) and gave 558 mg of 94.1C.

後処理

  1. washwashed with sodium bicarbonate solution and brine
  2. dry with materialThe organic phase was dried over anhydrous sodium sulfate
  3. customAfter removing solvent
  4. customthe residue was purified by flash chromatography (silica gel, 1:2 EtOAc/hexane)

出典と根拠

ORDレコード
ord-0062dd5d02c74e3c9977ec5de3a01767
出典データセット
uspto-grants-2011_10
特許番号
US08030354B2

反応ノート

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