反应 #1256773

反应方程式

trans-4-[2-(4-isoxazolo[4,5-c]pyridin-3-yl-piperazin-1-yl)-ethyl]-cyclohexylamine dihydrochloride

AcOH

iPr2NEt

TBTU

→

title compound

收率 67.0%

N-{trans-4-[2-(4-Isoxazolo[4,5-c]pyridin-3-yl-piperazin-1-yl)-ethyl]-cyclohexyl}-acetamide

收率 67.0%

溶剂

dioxane

反应条件

后处理

1. 1
   其他After evaporation to dryness sat. aq. NaHCO3
2. 2
   workup.ADDITIONwas added
3. 3
   萃取the product was extracted with 2 portions of CH2Cl2

实验过程

A mixture in dioxane (5 ml) of trans-4-[2-(4-isoxazolo[4,5-c]pyridin-3-yl-piperazin-1-yl)-ethyl]-cyclohexylamine dihydrochloride (100 mg, 0.25 mmol), AcOH (22 mg, 0.37 mmol), iPr2NEt (161 mg, 1.2 mmol) and TBTU (96 mg, 0.30 mmol) was stirred 16 h at r.t. After evaporation to dryness sat. aq. NaHCO3 was added and the product was extracted with 2 portions of CH2Cl2. The organic layers were directly loaded on a column. Flash chromatography (20 g SiO2, CH2Cl2/MeOH 100:0→90:10) yielded 62 mg (67%) of the title compound as white solid. m/z=372.2 ([M+H]+).

来源