Pyridine → HCID 86701040、化合物

HRID 1430711ノート

反応式

HRID 1430711 の反応式
[CH2:1]([O:8][N:9]1[C:15](=[O:16])[N:14]2[CH2:17][C@H:10]1[CH2:11][CH2:12][C@H:13]2[C:18]([NH:20][NH:21][C:22](=O)[CH2:23][CH:24]1[CH2:27][CH:26]([NH:28][C:29](=[O:35])[O:30][C:31]([CH3:34])([CH3:33])[CH3:32])[CH2:25]1)=[O:19])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.N1C=CC=CC=1.O(S(C(F)(F)F)(=O)=O)S(C(F)(F)F)(=O)=O.C([O-])(O)=O.[Na+]>C(Cl)Cl>[CH2:1]([O:8][N:9]1[C:15](=[O:16])[N:14]2[CH2:17][C@H:10]1[CH2:11][CH2:12][C@H:13]2[C:18]1[O:19][C:22]([CH2:23][CH:24]2[CH2:25][CH:26]([NH:28][C:29](=[O:35])[O:30][C:31]([CH3:34])([CH3:33])[CH3:32])[CH2:27]2)=[N:21][N:20]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

6

反応物 4

HCID 1049PyridineHCID 67749Trifluoromethanesulfonic anhydrideHCID 516892Sodium BicarbonateHCID 86701041HCID 86701041、化合物

生成物 1

HCID 86701040HCID 86701040、化合物収率 72.7%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

反応条件

温度
0 °C

実験手順

To a solution of tert-butyl 3-(2-(2-((2S,5R)-6-(benzyloxy)-7-oxo-1,6-diaza-bicyclo[3.2.1]octane-2-carbonyl)hydrazinyl)-2-oxoethyl)cyclobutylcarbamate (1.0 g, 1.99 mmol) in DCM (20 mL) was added pyridine (1.5 mL). (CF3SO2)2O (1.4 g, 4.97 mmol) was added slowly at −10° C. The reaction mixture was stirred at 0° C. for 1 h. Sat. NaHCO3 was added at 0° C. very slowly. The organic layer was separated and the water layer was exacted with EtOAc (3×). The combined organic layer was dried over Na2SO4 and concentrated. The residue was purified by silica gel column chromatography (gradient elution 10˜50% EtOAc/petroleum ether) to afford tert-butyl 3-((5-((2S,5R)-6-(benzyloxy)-7-oxo-1,6-diaza-bicyclo[3.2.1]octan-2-yl)-1,3,4-oxadiazol-2-yl)methyl)cyclobutylcarbamate (0.7 g, 48%) as a slight yellow solid. ESI-MS (EI+, m/z): 484.0 [M+H]+.

後処理

  1. customThe organic layer was separated
  2. dry with materialThe combined organic layer was dried over Na2SO4
  3. concentrationconcentrated
  4. customThe residue was purified by silica gel column chromatography (gradient elution 10˜50% EtOAc/petroleum ether)

出典と根拠

ORDレコード
ord-cde5c45ddac3483680b9f499dbb8aa2c
出典データセット
uspto-grants-2015_01
特許番号
US08940897B2

反応ノート

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