The present invention relates to a method for preparing 2-(2,5-difluorophenyl)-3-carboxy-7-chloro-(4H)-4-benzopyranone represented by formula 1 below, a novel intermediate used therein, and a method for preparing the same. Specifically, an object of the present invention is to provide a novel preparation method, in which the compound of formula 1 below can be efficiently and economically synthesized and can be mass-produced in a high yield.

##STR00001##

The present invention relates to a method for preparing 2-(2,5-difluorophenyl)-3-carboxy-7-chloro-(4H)-4-benzopyranone represented by formula 1 below, a novel intermediate used therein, and a method for preparing the same. Specifically, an object of the present invention is to provide a novel preparation method, in which the compound of formula 1 below can be efficiently and economically synthesized and can be mass-produced in a high yield.

##STR00001##

The present invention relates to compounds of formula (I): wherein Q is selected from O or S; R.sup.1 and R.sup.3 are each independently hydrogen or an optionally substituted hydrocarbyl group, or R.sup.1 and R.sup.3 together with the nitrogen atom to which they are attached may form a 3- to 12-membered optionally substituted cyclic group; and R.sup.2 is a cyclic group substituted at the position, wherein R.sup.2 may optionally be further substituted. The present invention further relates to salts, solvates and prodrugs of such compounds, to pharmaceutical compositions comprising such compounds, and to the use of such compounds in the treatment and prevention of medical disorders and diseases, most especially by the inhibition of NLRP3.

##STR00001##

The present invention relates to compounds of formula (I): wherein Q is selected from O or S; R.sup.1 and R.sup.3 are each independently hydrogen or an optionally substituted hydrocarbyl group, or R.sup.1 and R.sup.3 together with the nitrogen atom to which they are attached may form a 3- to 12-membered optionally substituted cyclic group; and R.sup.2 is a cyclic group substituted at the position, wherein R.sup.2 may optionally be further substituted. The present invention further relates to salts, solvates and prodrugs of such compounds, to pharmaceutical compositions comprising such compounds, and to the use of such compounds in the treatment and prevention of medical disorders and diseases, most especially by the inhibition of NLRP3.

##STR00001##

The present invention provides compositions comprising compounds having formulas (I), (II) or

##STR00001## and additionally provides methods for the use thereof in the treatment of various disorders including neurological disorders, cancer, diabetes, and obesity, wherein R1-R7, X, A, and Q in (I), R1-R15 in (II) and R1-R15 in (III) are as defined herein. In certain embodiments, methods for the treatment of various disorders including pain and cancer comprise topically, locally or systemically (e.g., IV, IP or orally) administering to a subject in need thereof a therapeutically effective amount of a compound of formulas (I), (II) or (III).

The present invention provides compositions comprising compounds having formulas (I), (II) or

##STR00001## and additionally provides methods for the use thereof in the treatment of various disorders including neurological disorders, cancer, diabetes, and obesity, wherein R1-R7, X, A, and Q in (I), R1-R15 in (II) and R1-R15 in (III) are as defined herein. In certain embodiments, methods for the treatment of various disorders including pain and cancer comprise topically, locally or systemically (e.g., IV, IP or orally) administering to a subject in need thereof a therapeutically effective amount of a compound of formulas (I), (II) or (III).

The present invention relates to compounds of formula (I): wherein Q is selected from O or S; R.sup.1 and R.sup.3 are each independently hydrogen or an optionally substituted hydrocarbyl group, or R.sup.1 and R.sup.3 together with the nitrogen atom to which they are attached may form a 3- to 12-membered optionally substituted cyclic group; and R.sup.2 is a cyclic group substituted at the position, wherein R.sup.2 may optionally be further substituted. The present invention further relates to salts, solvates and prodrugs of such compounds, to pharmaceutical compositions comprising such compounds, and to the use of such compounds in the treatment and prevention of medical disorders and diseases, most especially by the inhibition of NLRP3. ##STR00001##

The present invention relates to compounds of formula (I): wherein Q is selected from O or S; R.sup.1 and R.sup.3 are each independently hydrogen or an optionally substituted hydrocarbyl group, or R.sup.1 and R.sup.3 together with the nitrogen atom to which they are attached may form a 3- to 12-membered optionally substituted cyclic group; and R.sup.2 is a cyclic group substituted at the position, wherein R.sup.2 may optionally be further substituted. The present invention further relates to salts, solvates and prodrugs of such compounds, to pharmaceutical compositions comprising such compounds, and to the use of such compounds in the treatment and prevention of medical disorders and diseases, most especially by the inhibition of NLRP3. ##STR00001##

The present invention relates to chemical compounds of formula (I), with the substituents as described in the specification, useful in the positive modulation of the alpha 7 nicotinic acetylcholine receptor (7 nAChR). The invention also relates to the use of these compounds in the treatment or prevention of a broad range of diseases in which the positive modulation of 7 nAChR is advantageous, including neurodegenerative and neuropsychiatric diseases and also neuropathic pain and inflammatory diseases. ##STR00001##

The present invention relates to chemical compounds of formula (I), with the substituents as described in the specification, useful in the positive modulation of the alpha 7 nicotinic acetylcholine receptor (7 nAChR). The invention also relates to the use of these compounds in the treatment or prevention of a broad range of diseases in which the positive modulation of 7 nAChR is advantageous, including neurodegenerative and neuropsychiatric diseases and also neuropathic pain and inflammatory diseases. ##STR00001##