Patent ID: 6057340
Filing Date: 2000-05-02
Classification: C07D

Abstract:
A compound of Formula 1 having the structure ##STR9## wherein: R.sub.1 is hydrogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, benzyloxy, trifluoromethyl, chloro, bromo, or fluoro;a dashed line indicates an optional bond;X is no atom;R.sub.2 is alkyl of 1-6 carbon atoms, cycloalkyl of 3-8 carbon atoms, cycloalkylalkyl wherein the cycloalkyl moiety is 3-8 carbon atoms and the alkyl moiety is 1-6 carbon atoms, aryl of 5-12 carbon atoms, or arylalkyl of 6-12 carbon atoms;R.sub.3 is aryl of 5-12 carbon atoms, arylalkyl of 6-12 carbon atoms, or heteroaryl of 5-12 atoms;R.sub.4 is hydrogen or alkyl of 1-6 carbon atoms;or a pharmaceutically acceptable salt thereof.