4-[(2S)-(-)-2-hydroxy-3-[(2R,4S)-(6-methoxybenzo[b]thiophen-2-yl)-2-methylpiperidinyl]propoxy]indole-2-carboxamide 、
草酸 以
乙酸乙酯 为溶剂,
生成
4-[(2S)-(-)-2-hydroxy-3-[(2R,4S)-(6-methoxybenzo[b]thiophen-2-yl)-2-methylpiperidinyl]propoxy]indole-2-carboxamide oxalate