申请人:Boehringer Ingelheim (Canada) Ltd.
公开号:US05808085A1
公开(公告)日:1998-09-15
A highly efficient and practical means has been developed which enables compounds of the formula: ##STR1## wherein R.sup.1 is lower alkoxy, lower alkylamino, di-(loweralkyl) amino, or the monovalent radical A--NR.sup.3, wherein A is lower alkyl or A is R.sup.4 R.sup.5 NC(O)CH.sub.2 wherein, for example, R.sup.4 is hydrogen or alkyl and R.sup.5 is hydrogen, alkyl or a substituted alkyl, or R.sup.5 is R.sup.6 R.sup.7 N-Alk wherein R.sup.6 and R.sup.7 each is hydrogen or lower alkyl and Alk is a divalent alkyl radical; R.sup.3 is, for example, benzyl, alkyl or a substituted alkyl; and R.sup.2 is, inter alia, alkyl, cycloalkyl, 1H-imidazol-4-yl, 4-thiazolyl or 2-amino-4-thiazolyl; to be prepared through the kinetic resolution of a compound of the formula: ##STR2## wherein R.sup.1 is as defined herein, R.sup.2 is as defined herein, and B is lower alkyl. These compounds are useful intermediates in the synthesis of renin inhibiting compounds.
已经开发出一种高效实用的方法,可以使得符合以下式的化合物得以制备:##STR1## 其中R.sup.1是较低的烷氧基、较低的烷基氨基、二-(较低烷基)氨基,或单价基团A--NR.sup.3,其中A是较低的烷基或A是R.sup.4 R.sup.5 NC(O)CH.sub.2,其中,例如,R.sup.4是氢或烷基,R.sup.5是氢、烷基或取代烷基,或R.sup.5是R.sup.6 R.sup.7 N-Alk,其中R.sup.6和R.sup.7各自是氢或较低的烷基,Alk是二价烷基基团;R.sup.3是,例如,苄基、烷基或取代烷基;R.sup.2是,例如,烷基、环烷基、1H-咪唑-4-基、4-噻唑基或2-氨基-4-噻唑基;通过对以下式的化合物进行动力学分辨制备:##STR2## 其中R.sup.1如本文所定义,R.sup.2如本文所定义,B是较低的烷基。这些化合物在合成抑制肾素的化合物中是有用的中间体。