N,N-(C1 -C6)alkylamino or said (C1 -C6)alkyl or (C2 -C6)alkenyl substituents are optionally substituted with from one to nine fluorines; R4 is Q1 or V1 wherein Q1 a fully saturated, partially unsaturated or fully unsaturated one to six membered straight or branched carbon chain wherein the carbons, other than the connecting carbon, may optionally be replaced with one heteroatom selected from oxyge