The substrate specificity of the heat-stable stereospecific amidase from Klebsiella oxytoca
作者:Nicholas M Shaw、Andrew B Naughton
DOI:10.1016/j.tet.2003.10.124
日期:2004.1
heat-stable stereospecific amidase from Klebsiella oxytoca was investigated. In addition to the original substrate, 3,3,3-trifluoro-2-hydroxy-2-methylpropanamide, the amidase accepted 2-hydroxy-2-(trifluoromethyl)-butanamide and 3,3,3-trifluoro-2-amino-2-methylpropanamide as substrates. Compounds with larger side chains and compounds where the hydroxyl group was substituted with a methoxy group, or in which
研究了产氧克雷伯菌的热稳定的立体特异性酰胺酶的底物特异性。除了原始底物3,3,3-三氟-2-羟基-2-甲基丙酰胺外,酰胺酶还接受2-羟基-2-(三氟甲基)-丁酰胺和3,3,3-三氟-2-氨基-丁酰胺。以2-甲基丙酰胺为底物。不接受具有较大侧链的化合物和羟基被甲氧基取代或CF 3被CCl 3取代的化合物。生物转化是合成(R)-(+)-3,3,3-三氟-2-氨基-2-甲基-2-丙酸及其相关的(S)-(-)-酰胺和合成(R)-(+)-2-羟基-2-(三氟甲基)-丁酸及其相关的(S)-(-)-酰胺。