Studies on Acylase Activity and Microorganisms. XXI. Optical Resolution of Higher Amino Acids by Acylase of Soil Bacteria
作者:Yukio Kimura
DOI:10.1248/cpb.10.1154
日期:——
The acylase activity of a strain (KT 218) of soil bacteria was tested against N-benzoyl and N-dichloroacetyl derivatives of 2-aminooctanoic, 2-aminodecanoic, 2-aminolauric, 2-aminomyristic, and 2-aminopalmitic acid. It was revealed that the dichloroacetylaminoacids were more easily hydrolyzed than the corresponding benzoylamino acids and that the N-dichloroacetyl-derivatives of the homologous series of straight chain 2-aminoacid were hydrolyzed at progressively decreasing rates from N-dichloroacetyl-DL-2-aminooctanoic acid to N-dichloroacetyl-DL-2-aminopalmitic acid which was resistant to KT 218 acylase. The acetone powder of KT 218 effected asymmetric hydrolysis of N-dichloroacetyl derivatives of 2-aminooctanoic, 2-aminodecanoic, 2-aminolauric, 2-aminomyristic acids to yield respectively L-2-aminooctanoic acid (XI) and N-dichloroacetyl-D-2-aminooctanoic acid (XV), L-2-aminodecanoic acid (XII) and N-dichloroacetyl-D-2-aminodecanoic acid (XVI), L-2-aminolauric acid (XIII) and N-dichloroacetyl-D-2-aminolauric acid (XVII), and L-2-aminomyristic acid (XIV) and impure N-dichloroacetyl-D-2-aminomyristic acid. In the same way KT 218 acetone powder effected asymmetric hydrolysis of N-benzoyl derivatives of 2-aminooctanoic, 2-aminodecanoic, and 2-aminolauric acids to yield respectively L-2-aminooctanoic acid (XI) and N-benzoyl-D-2-aminooctanoic acid (XVIII), L-2-aminodecanoic acid (XII) and impure N-benzoyl-D-2-aminodecanoic acid, and L-2-aminolauric acid (XIII) and impure N-benzoyl-D-2-aminolauric acid.
对一株土壤细菌(KT 218)针对 2-氨基辛酸、2-氨基癸酸、2-氨基月桂酸、2-氨基肉豆蔻酸和 2-氨基棕榈酸的 N-苯甲酰基和 N-二氯乙酰基衍生物的酰化酶活性进行了测试。研究发现,二氯乙酰基氨基酸比相应的苯甲酰氨基酸更容易水解,直链 2-氨基酸同源系列的 N-二氯乙酰基衍生物的水解速度从 N-二氯乙酰基-DL-2-氨基辛酸到 N-二氯乙酰基-DL-2-氨基棕榈酸逐渐降低,而后者对 KT 218酰化酶具有抗性。KT 218 的丙酮粉末能不对称地水解 2-氨基辛酸、2-氨基癸酸、2-氨基月桂酸和 2-氨基肉豆蔻酸的 N-二氯乙酰基衍生物,分别生成 L-2-氨基辛酸(XI)和 N-二氯乙酰基-D-2-氨基辛酸(XV)、L-2-氨基癸酸(XII)和 N-二氯乙酰基-D-2-氨基癸酸(XVI),L-2-氨基月桂酸(XIII)和 N-二氯乙酰基-D-2-氨基月桂酸(XVII),以及 L-2-氨基肉豆蔻酸(XIV)和不纯的 N-二氯乙酰基-D-2-氨基肉豆蔻酸。同样,KT 218 丙酮粉末对 2-氨基辛酸、2-氨基癸酸和 2-氨基月桂酸的 N-苯甲酰基衍生物进行了不对称水解,分别生成了 L-2-氨基辛酸(XI)和 N-苯甲酰基-D-2-氨基辛酸(XVIII)、L-2-aminodecanoic acid (XII) and impure N-benzoyl-D-2-aminodecanoic acid, and L-2-aminolauric acid (XIII) and impure N-benzoyl-D-2-aminolauric acid.