申请人:Bristol-Myers Company
公开号:US04898949A1
公开(公告)日:1990-02-06
This invention provides novel tetrazole intermediates of the formula ##STR1## wherein R.sup.1 and R.sup.4 each are independently hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or trifluoromethyl; R.sup.2,R.sup.3,R.sup.5 and R.sup.6 each are independently hydrogen, halogen, C.sub.1-4 alkyl or C.sub.1-4 alkoxy; B is hydrogen, C.sub.1-4 alkoxycarbonyl, CH.sub.2 Y or CH.sub.2 Z; Y is hydrogen, hydroxyl or X; Z is ##STR2## X is bromo, chloro or iodo; R.sup.10 is C.sub.1-4 alkyl; and R.sup.11 is phenyl which is unsubstituted or substituted by one or two C.sub.1-4 alkyl or chloro substituents. and processes thereof which are useful for the preparation of antihypercholesterolemic agents.
这项发明提供了新型的四唑中间体,其化学式为##STR1##其中R.sup.1和R.sup.4分别独立地是氢、卤素、C.sub.1-4烷基、C.sub.1-4烷氧基或三氟甲基;R.sup.2、R.sup.3、R.sup.5和R.sup.6分别独立地是氢、卤素、C.sub.1-4烷基或C.sub.1-4烷氧基;B是氢、C.sub.1-4烷氧羰基、CH.sub.2 Y或CH.sub.2 Z;Y是氢、羟基或X;Z是##STR2##X是溴、氯或碘;R.sup.10是C.sub.1-4烷基;R.sup.11是苯基,未取代或取代一个或两个C.sub.1-4烷基或氯代基。以及用于制备抗高胆固醇药物的相关方法。