A nonnaturally occurring, biologically active compound defined by the general formula FAF: where R2 is hydrogen or an organic moiety; J is an organic moiety comprising at least one sugar unit and/or at least one Pet (pentaerythritol) unit; R3 is of the form (Z) o_1CF2R3', Z is a single spacer, spacerCH2spacer, or a spacer cluster, and R3'is a primarily alkyl moiety.