Provided are an ultraviolet absorbing agent including a compound represented by Formula (1), in which the ultraviolet absorbing agent has a maximum absorption wavelength in a wavelength range of 350 to 390 nm in an ethyl acetate solution, and a value obtained by dividing an absorbance at a wavelength of 430 nm by an absorbance at the maximum absorption wavelength is 0.01 or less, a resin composition, a cured substance, and an optical member which include the ultraviolet absorbing agent, a method of producing an ultraviolet absorbing agent, and a compound. In Formula (1), X.sup.1 and X.sup.2 each independently represent a cyano group or the like, R.sup.1 and R.sup.2 each independently represent an alkyl group or the like, and R.sup.3 and R.sup.4 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, or an aryloxy group.

##STR00001##

Provided are an ultraviolet absorbing agent including a compound represented by Formula (1), in which the ultraviolet absorbing agent has a maximum absorption wavelength in a wavelength range of 350 to 390 nm in an ethyl acetate solution, and a value obtained by dividing an absorbance at a wavelength of 430 nm by an absorbance at the maximum absorption wavelength is 0.01 or less, a resin composition, a cured substance, and an optical member which include the ultraviolet absorbing agent, a method of producing an ultraviolet absorbing agent, and a compound. In Formula (1), X.sup.1 and X.sup.2 each independently represent a cyano group or the like, R.sup.1 and R.sup.2 each independently represent an alkyl group or the like, and R.sup.3 and R.sup.4 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, or an aryloxy group.

##STR00001##

Provided are a curable resin composition including a near-ultraviolet light-absorbing organic compound, indium tin oxide particles, and a polymer having a constitutional unit represented by General Formula (P) and having an acidic group at one terminal, in which the near-ultraviolet light-absorbing organic compound is a compound that has a maximal value at 300 to 400 nm in an absorption spectrum in a wavelength region of 300 to 800 nm and does not substantially absorb light at a wavelength of 410 to 800 nm; a cured product formed of the curable resin composition; a diffractive optical element; and a multilayer diffractive optical element.

##STR00001##

Ar.sup.P represents an aryl group and L.sup.P and R.sup.P1 represent a specific group.

Provided are a curable resin composition including a near-ultraviolet light-absorbing organic compound, indium tin oxide particles, and a polymer having a constitutional unit represented by General Formula (P) and having an acidic group at one terminal, in which the near-ultraviolet light-absorbing organic compound is a compound that has a maximal value at 300 to 400 nm in an absorption spectrum in a wavelength region of 300 to 800 nm and does not substantially absorb light at a wavelength of 410 to 800 nm; a cured product formed of the curable resin composition; a diffractive optical element; and a multilayer diffractive optical element.

##STR00001##

Ar.sup.P represents an aryl group and L.sup.P and R.sup.P1 represent a specific group.

According to the present invention, a lens adhesive including a compound represented by General Formula 1 is provided.
Pol.sub.1-Sp.sub.1-L.sub.1-Ar-L.sub.2-Sp.sub.2-Pol.sub.2  (General Formula 1) In the formula, Ar is an aromatic ring group represented by General Formula 2-2 and the like. ##STR00001## In the formula, Z.sub.1 and Z.sub.2 each represent a hydrogen atom, a methyl group, and the like; A.sub.1 and A.sub.2 each represent —S— and the like; X represents C(Rz).sub.2 and the like (where Rz is a substituent, and two Rz's may form a ring); L.sub.1 and L.sub.2 each represent a single bond, —O—, —OC(═O)—, —OC(═O)O—, —OC(═O)NH—, and the like; Sp.sub.1 and Sp.sub.2 each represent a single bond or a linking group such as a linear alkylene group; Pol.sub.1 and Pol.sub.2 each represent a hydrogen atom or a polymerizable group; and a compound represented by General Formula 1 has at least one polymerizable group. Using the lens adhesive, it is possible to provide a cemented lens that is unlikely to deteriorate due to light, and an imaging module having high durability.

According to the present invention, a lens adhesive including a compound represented by General Formula 1 is provided.
Pol.sub.1-Sp.sub.1-L.sub.1-Ar-L.sub.2-Sp.sub.2-Pol.sub.2  (General Formula 1) In the formula, Ar is an aromatic ring group represented by General Formula 2-2 and the like. ##STR00001## In the formula, Z.sub.1 and Z.sub.2 each represent a hydrogen atom, a methyl group, and the like; A.sub.1 and A.sub.2 each represent —S— and the like; X represents C(Rz).sub.2 and the like (where Rz is a substituent, and two Rz's may form a ring); L.sub.1 and L.sub.2 each represent a single bond, —O—, —OC(═O)—, —OC(═O)O—, —OC(═O)NH—, and the like; Sp.sub.1 and Sp.sub.2 each represent a single bond or a linking group such as a linear alkylene group; Pol.sub.1 and Pol.sub.2 each represent a hydrogen atom or a polymerizable group; and a compound represented by General Formula 1 has at least one polymerizable group. Using the lens adhesive, it is possible to provide a cemented lens that is unlikely to deteriorate due to light, and an imaging module having high durability.

The present application describes process for preparing an ortho-allylated hydroxy aryl compounds such as compounds of Formula (I) by reacting an allylic alcohol with a hydroxy aryl compound in the presence of aluminum compound selected from alumina and aluminum alkoxides and in a non-protic solvent wherein at least one carbon atom ortho to the hydroxy group in the hydroxy aryl compound is unsubstituted. The present application also includes compounds of Formula (I). ##STR00001##

The disclosure of a compound of Formula (I) or a pharmaceutically acceptable salt thereof (I) The variables W, R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are defined in the disclosure. The disclosure provides a compound or salt of Formula (I) together with a pharmaceutically acceptable carrier. The disclosure also provides methods of treating a patient for Parkinson's disease and related syndromes, dyskinesia, especially dyskinesias secondary to treating Parkinson's disease with L-DOPA, neurodegenerative disorders such as Alzheimer's disease and dementia, Huntington's disease, restless legs syndrome, bipolar disorder and depression, schizophrenia, cognitive dysfunction, or substance use disorders, the methods comprising administering a compound of Formula I or salt thereof to the patient. The disclosure provides combination methods of treatment in which the compound of Formula (I) is administered to the patient together with one or more additional active agents.

The present application describes process for preparing an ortho-allylated hydroxy aryl compounds such as compounds of Formula (I) by reacting an allylic alcohol with a hydroxy aryl compound in the presence of aluminum compound selected from alumina and aluminum alkoxides and in a non-protic solvent wherein at least one carbon atom ortho to the hydroxy group in the hydroxy aryl compound is unsubstituted. The present application also includes compounds of Formula (I).

##STR00001##

A radiation-sensitive resin composition includes a solvent and an onium salt compound having a structure represented by formula (1). R.sup.f1 and R.sup.f2 each independently represent a fluorine atom or a monovalent fluorinated hydrocarbon group having 1 to 20 carbon atoms. R.sup.1 represents a hydrogen atom, a monovalent hydrocarbon group having 1 to 20 carbon atoms, a fluorine atom, or a monovalent fluorinated hydrocarbon group having 1 to 20 carbon atoms. R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, and R.sup.7 each independently represent a hydrogen atom or a monovalent hydrocarbon group having 1 to 20 carbon atoms. n.sub.1+n.sub.2 is an integer of 2 to 8. n.sub.3 represents an integer of 0 to 5. X.sup.1 and X.sup.2 each independently represent an oxygen atom or a sulfur atom. Each * represents a bond with another structure. Z.sup.+ represents a monovalent radiation-sensitive onium cation.

##STR00001##