反応 #71111

反応方程式

2-{2-[1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-oxazol-5-ylmethyl}-2H-[1,2,3]triazol-4-ylamine

N2

5-phenyl-oxazole-4-carboxylic acid

HOBt

EDC

→

title compound

5-Phenyl-oxazole-4-carboxylic acid (2-{2-[1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-oxazol-5-ylmethyl}-2H-[1,2,3]triazol-4-yl)-amide

溶媒

CH2Cl2

CH2Cl2

water

CH2Cl2

反応条件

後処理

1. 1
   workup.STIRRINGthe resulting mixture was stirred at rt for 72 h
2. 2
   workup.ADDITIONwere added
3. 3
   抽出the aqueous phase was extracted with CH2Cl2
4. 4
   洗浄The combined organic phases were washed with water, brine
5. 5
   乾燥dried over MgSO4
6. 6
   ろ過filtered
7. 7
   その他the solvent removed under reduced pressure

実験手順

In a flame dried round-bottomed flask equipped with a magnetic stir bar and under inert atmosphere (N2), a solution of 5-phenyl-oxazole-4-carboxylic acid (47 mg, 0.25 mmol) in CH2Cl2 (1.5 mL) was treated at rt with HOBt (40 mg, 0.30 mmol), EDC (119 mg, 0.62 mmol), DMAP (8 mg, 0.06 mmol) and the resulting mixture was stirred at rt for 30 min. 2-{2-[1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-oxazol-5-ylmethyl}-2H-[1,2,3]triazol-4-ylamine (80 mg, 0.25 mmol) in CH2Cl2 (1.0 mL) was then added and the resulting mixture was stirred at rt for 72 h. CH2Cl2 (20 mL) followed by water (15 mL) were added and the aqueous phase was extracted with CH2Cl2. The combined organic phases were washed with water, brine, dried over MgSO4, filtered, and the solvent removed under reduced pressure to give the title compound as a yellow oil. LC-MS-conditions 02: tR=1.17 min, [M+H]+=495.54.

出典