Compounds structurally derived from 2-(3-hydroxycyclohexyl)phenol by substitution at the 5 position of the phenolic ring by alkyl, alkenyl, cycloalkylmethyl, cycloalkylethyl or 2-(4-morpholinyl)ethyl, whether or not there is a further substitution in the cyclohexyl ring. Including, but not limited to: CP-55,940