SK&F 105685 [ N,N-dimethyl-8,8-dipropyl-2-azaspiro(4.5)decane-2-propanamide,N,N-dimethyl-8,8-dipropyl-2-azaspiro-(4.5)decane-2-propanamine,SK&F 105685 dihydrochloride,SK&F-105685,SKF 105685 ] an azaspirane; structure given in first source; RN given refers to parent cpd