3-heteroaryl-3-hydroxy-2-amino-propyl amines and related compounds having analgesic and/or immuno stimlant activity
Compounds of the formula where the variables have the meaning defined in the specification have analgesic and/or immunostimulant effect in mammals.
1. A compound having the formula
where R 5 and R 6 are independently selected from H, alkyl, and alkoxy and R 4 is H or CO—R 8 , wherein R 8 is alkyl of 1 to 6 carbons;
or a pharmaceutically acceptable salt of said compound.
2. A compound in accordance with claim 1 having the formula
or a pharmaceutically acceptable salt of said compound.
3. A method of treating pain in a mammal, the method comprising the step of administering to a mammal in need of such treatment a compound in accordance with claim 1 .
4. A method of treating pain in a mammal, the method comprising the step of administering to a mammal in need of such treatment a compound in accordance with claim 2 .
5. A pharmaceutical composition for treating pain in a mammal, the composition comprising a compound in accordance with claim 1 and a pharmaceutically acceptable excipient.