N-(2-oxaadamantan-1-yl)ureas of formula I, where R3 is H, C1-C3
alkyl, cyclohexyl or phenyl; R is -[CH2]n -Y; n is 0-15; in -[CH2]n - 0-n / 3 of the
methylene groups are optionally replaced by non adjacent
oxygen atoms; and Y is a 3- or 4-substituted phenyl, a 3- or 4-substituted cyclohexyl, a N-substituted piperidin-4-yl, a N-substituted piperidin-3-yl, a di- or tri-fluorosubstituted phenyl, 4-chloro-3-trifluoromethylphenyl, 3-chloro-4-trifluoromethylphenyl, 4-fluoro-3-trifluoromethylphenyl, or 3-fluoro-4-trifluoromethylphenyl; have
epoxide hydrolase (sEH) inhibitory activities similar to thoseof their N-(adamantan-1-yl)
urea analogs. Thus, compounds I are useful as API for the treatment of sEH mediated diseases. Besides, in general, compounds (I) have higher water solubilities and lower melting points, what make them more promising from the point of view of
pharmacokinetics and formulation.