Polyethylene glycol monomethyl ether-modified pig liver esterase: Preparation, characterization and catalysis of enantioselective hydrolysis in water and acylation in organic solvents
作者:Ludger Heiss、Hans-Joachim Gais
DOI:10.1016/0040-4039(95)00631-l
日期:1995.5
and photon correlation spectroscopy. It retains the activity of native PLE in the enantioselective hydrolysis of prochiral diesters 2, 4, 6 and 8 to the monoesters 3, 5, 7 and 9, respectively, in water. MPEG-PLE is soluble and active in organic solvents. The MPEG-PLE catalyzed acylation of prochiral diols 10 and 11 with vinyl acetate in toluene leads to monoacetates ent-5 and 9, respectively.
通过将PLE修改为1来制备MPEG-PLE,并通过凝胶电泳,尺寸排阻色谱,阴离子交换色谱和光子相关光谱进行表征。它保留天然PLE的前手性中二酯的对映选择性水解活性2,4,6和8的单酯3,5,7和9,分别在水。MPEG-PLE可溶于有机溶剂并具有活性。前手性二醇的MPEG-PLE催化酰化10和11在甲苯中导致单乙酸酯的乙酸乙烯酯ENT - 5和9分别。