Heterocyclic cis cyclopropane derivatives as melatonergic agents
 There is provided a novel series of cis cyclopropane compounds of Formula I ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, X, Y, Z and m are as defined herein which bind to the human melatonin receptor and therefore are useful as melatonergic agents. 
Bristol-Myers Squibb
A C
A61P C07D
inventional inventional
Katherine S. Pierre Marco Jie
Takaki Dextraze Dodier Chen