A new chemoenzymatic approach to the synthesis of chiral 4-aryl-1,4-dihydro-2H-isoquinolines via the enzymatic resolution of 2-acetyl-4-phenyl-1,4-dihydro-2H-isoquinolin-3-one
作者:Dominik Koszelewski、Malgorzata Cwiklak、Ryszard Ostaszewski
DOI:10.1016/j.tetasy.2012.07.013
日期:2012.9
A new chemoenzymatic method is proposed for the synthesis of enantiomerically pure 4-phenyl-1,4-dihydro-2H-isoquinolines based on the enzymatic kinetic resolution of 2-acetyl-4-phenyl-1,4-dihydro-2H-isoquinolin-3-one. For the enzymatic resolution of the racemic substrate, readily available ‘home made’ animal liver acetone powders (LAPs) were used. Excellent enantioselectivity, exceeding 500, was achieved
基于2-乙酰基-4-苯基-1,4-二氢-2 H-的酶促动力学拆分,提出了一种新的化学酶法合成对映体纯的4-苯基-1,4-二氢-2 H-异喹啉。异喹啉-3-酮。为了酶法拆分外消旋底物,使用了容易获得的“自制”动物肝丙酮粉(LAP)。使用火鸡肝丙酮粉作为生物催化剂后,在很短的反应时间内即可达到超过500的优异对映选择性。所得产物的还原导致形成胺(R)-1,这很难用标准方法得到。这些结果表明,ñ-乙酰基内酰胺是用于酶促生物转化的新型底物。