| abstract |
The present application herein includes novel compounds of Formula (I), or pharmaceutically acceptable salts or solvates thereof; Pharmaceutical compositions comprising the same; And the use of such compounds in the treatment of pain, anxiety, cough, asthma, depression and alcohol abuse:n n n Formula In n n n n n n n In the above formula,n n n R is optionally substituted heteroaryl or ego; R 1 is H or C 1 -C 6 alkyl; R 2 and R 3 are —CH 3 , —OCH 3 or halo. |