Question: Which opioid along with Subutex makes up the two best known of the thevinol, orvinol, or bridged oripavine derivatives?
Sentence (from "Bentley compounds"): The compounds are also known as thevinols, orvinols, or bridged oripavine derivatives, due to the characteristic 6,14-"endo"-etheno- bridge and substitution at the 7α position.
Relevant evidence: Yes