Uracil derivatives and production thereof

Claim 1

A compound having the formula: ##STR36## wherein X is O; Y is a group of the formula --COOY' wherein Y' is cycloalkyl or alkyl of 1 to 18 carbon atoms, allyl, phenalkyl of 7 to 8 carbon atoms or phenyl, alkylphenyl, alkoxyphenyl, halophenyl, haloalkylphenyl or aminophenyl of 6 to 8 carbon atoms, said alkyl group of 1 to 18 carbon atoms being unsubstituted or substituted by halogen or ethoxy or CN; R 1 is a member of the group consisting of (1) hydroxy, (2) etherified hydroxyl selected from the group consisting of alkoxy and cycloalkoxy groups of 1 to 18 carbon atoms, hydroxyethoxy, chloroethoxy, methoxyethoxy, ethoxyethoxy, trifluoroethoxy, allyloxy, cyclohexenyloxy, propargyloxy, 3-butynyloxy, 2-butynyloxy, benzyloxy, p-chlorobenzyloxy, p-fluorobenzyloxy, phenethyloxy and phenoxy, alkylphenoxy, haloalkylphenoxy of 6 to 8 carbon atoms, (3) etherified mercapto corresponding to the etherified hydroxyl as defined above, (4) β-naphthylmercapto and (5) esterified hydroxyl selected from the group consisting of alkanoyloxy or haloalkanoyloxy having 1 to 4 carbon atoms, benzoyloxy, p-methoxybenzoyloxy, p-chlorobenzoyloxy, p-methoxybenzoyloxy, phenylacetyloxy, p-toluenesulfonyloxy and methanesulfonyloxy; and R 2 and R 3 , respectively, are H, lower alkyl or ##STR37##