The present invention relates to compounds of Formula I, ##STR00001## or a stereoisomer thereof, a pharmaceutically acceptable salt thereof, or a prodrug thereof. The compounds of the inventions are CRF.sub.1 receptor antagonists. Compounds of the invention are useful for treating, in a warm-blooded animal, particularly a mammal, and more particularly a human, various disorders that are associated with CRF or CRF.sub.1 receptors, or disorders the treatment of which can be effected or facilitated by antagonizing CRF.sub.1 receptors.