| abstract |
Heterocyclic are provided which are sodium/proton exchange (NHE) inhibitors which have the structure n nwherein n is 1 to 5; X is N or C—R 5 wherein R 5 is H, halo, alkenyl, alkynyl, alkoxy, alkyl, aryl or heteroaryl; Z is a heteroaryl group, R 1 , R 2 , R 3 and R 4 are as defined herein, and where X is N, R 1 is preferably aryl or heteroaryl, and are useful as antianginal and cardioprotective agents. In addition, a method is provided for preventing or treating angina pectoris, cardiac dysfunction, myocardial necrosis, and arrhythmia employing the above heterocyclic derivatives. |