three new derivatives of morphine : o3- ( beta-isopropylaminoethyl ) ether of morphine ( t .3289 ) , o3 , o6- [ n , n'-bis ( methylcarbamate ] ester of morphine ( t .3298 ) and beta-dimethylamino-ethyl-ether of dihydromorphinone ( t .3403 ) were tested for their action on cns .
C0026553
derivatives
C0012306
dihydromorphinone