Azaspiro compounds

A compound selected from the formula:

• ##STR20## wherein R.sup.1 and R.sup.2, taken together with the carbon atom to which they are attached, form cyclobutyl or cyclohexyl or cycloalkoxyalkyl ring of from 5 to 11 nuclear carbon atoms which ring may be saturated or unsaturated and substituted or unsubstituted where the substituent can be lower alkyl of 1 to 5 carbon atoms or hydroxy;
• R.sup.3 is a radical of the formula:
• --C(.dbd.Y)NR.sup.4 R.sup.5 wherein R.sup.4 is hydrogen and R.sup.5 is lower alkenyl of from 2 to 5 carbon atoms or carbo lower alkoxy or R.sup.4 and R.sup.5 may be joined to form, together with the nitrogen atom to which they are attached, pyrrolidinyl, piperidyl or homopiperidyl which may be substituted with a lower alkyl of from 1 to 5 carbon atoms, carbo alkoxy or ethylenedioxy;
• Y is O or S;
• X is lower alkyl of from 1 to 5 carbon atoms, lower alkoxy of from 1 to 5 carbon atoms, lower alkoxycarbonyl lower alkyl or cyano;
• m is an integer of 0 to 2 and n and n' are integers each having a value of 1 to 2 and the dotted line indicates an optional carbon to carbon double bond.