A nanosized complex includes a nucleic acid and a compound comprising formula (I):

##STR00001## wherein R.sup.1 is an alkylamino group or a group containing at least one aromatic group; R.sup.2 and R.sup.3 are independently an aliphatic group or hydrophobic group; R.sup.4 and R.sup.5 are independently H, a substituted or unsubstituted alkyl group, an alkenyl group, an acyl group, or an aromatic group, or a polymer, a targeting group, a detectable moiety, or a linker, or a combination thereof, and at least one of R.sup.4 and R.sup.5 includes a retinoid or retinoid derivative that targets and/or binds to an interphotoreceptor retinoid binding protein; a, b, c, and d are independently an integer from 1 to 10; and pharmaceutically acceptable salts thereof.

The present invention relates to a process for producing specific ,-unsaturated carboxylates.

The present invention relates to a process for producing specific ,-unsaturated carboxylates.