the presence of immobilized benzylpenicillin acylase of the N-phenacetyl derivatives of the primary amines (3)-(5) affords the hydroxy amines (6)-(8), key intermediates in the synthesis of optically active forms of carnitin and propranalol, of ca. 0.4, 0.3 and 0.8 ee, respectively.
在
伯胺(3)-(5)的N-
苯乙酰基衍
生物固定化苄
青霉素酰基转移酶存在下于pH 7.5
水解可提供
羟胺(6)-(8),这是旋光形式合成中的关键中间体肉碱和
普萘洛尔,约。分别为0.4、0.3和0.8 ee。