[6-(5-{3-cyano-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-3,4-dihydro-2(1H)-isoquinolinyl]acetic acid mono-trifluoroacetate 、
N-乙基吗啉 、
O-(7-azabenzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate 、
L-氨基丙醇 在
碳酸氢钠 、
水 、 Brine 、
methanol-dichloromethane 作用下,
以
N,N-二甲基甲酰胺 、
乙酸乙酯 为溶剂,
反应 16.0h,
以Chromatography (methanol/DCM, 5-10%) gave 2-[6-(5-{3-cyano-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-3,4-dihydro-2(1H)-isoquinolinyl]-N-[(1S)-2-hydroxy-1-methylethyl]acetamide as a colourless solid (128 mg)的产率得到2-[6-(5-{3-cyano-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-3,4-dihydro-2(1H)-isoquinolinyl]-N-[(1S)-2-hydroxy-1-methylethyl]acetamide