Disclosed are novel CRF receptor antagonists and their use as treatment of a variety of disorders, including disorders manifesting hypersecretion of CRF or associated with CRF or CRF receptors, such as anxiety, and depression. CRF receptor antagonists of the invention have the structure of formula (I): including stereoisomers or mixture of stereoisomers, pharmaceutically acceptable prodrugs, or pharmaceutically acceptable salts thereof, wherein in formula (I) R is H or Me.