abstract |
The present invention is directed to radiolabeled N-substituted-6-iodo-3,14-dihydroxy-4,5α-epoxymorphinans, intermediates for producing the same, and a process for the preparation and methods of detecting opioid receptors. The radioimaging agent of the present invention has the following formula: ##STR1## wherein I is selected from the group consisting of 123 L and 125 ; and where R is alkyl, cycloalkylloweralkyl or allyl. |