5-(bromoacetyl)-4,6-dimethyl-2-benzofuran-1(3H)-one 、 (R)-5-(1-hydroxy-2-(piperazin-1-yl)ethyl)-4-methylisobenzofuran-1(3H)-one hydrochloride 在
氮气 、
甲醇 作用下,
以
四氢呋喃 为溶剂,
反应 12.0h,
以to give 5-({4-[(2R)-2-hydroxy-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}acetyl)-4,6-dimethyl-2-benzofuran-1(3H)-one的产率得到5-({4-[(2R)-2-hydroxy-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}acetyl)-4,6-benzofuran-1(3H)-one