A sulfonium salt of formula (0-1) is provided wherein W is alkylene or arylene, R.sup.01 is a monovalent hydrocarbon group, m is 0, 1 or 2, k is an integer: 0k5+4m, R.sup.101, R.sup.102 and R.sup.103 are a monovalent hydrocarbon group, or at least two of R.sup.101, R.sup.102 and R.sup.103 may bond together to form a ring with the sulfur atom, and L is a single bond, ester, sulfonic acid ester, carbonate or carbamate bond. A resist composition comprising the sulfonium salt as PAG exhibits a very high resolution when processed by EB and EUV lithography. A pattern with minimal LER is obtainable. ##STR00001##

Small molecule xanthine oxidase inhibitors are provided, as well as compositions, methods for their use for treating disorders, mediated at least in part, by xanthine oxidase.

Small molecule xanthine oxidase inhibitors are provided, as well as compositions, methods for their use for treating disorders, mediated at least in part, by xanthine oxidase.

Provided is an electrolyte additive, including a compound of formula (1), wherein R.sub.1 is selected from a substituted or unsubstituted five-membered heterocyclic group, a substituted or unsubstituted six-membered heterocyclic group, or a substituted or unsubstituted amino group; L is a sulfone group, a sulfate ester group, or a sulfonate ester group; and R.sub.2 is selected from a substituted or unsubstituted C.sub.1-18 alkyl group, a substituted or unsubstituted C.sub.1-18 alkoxy group, a substituted or unsubstituted conjugated five-membered carbocyclic group or heterocyclic group, a substituted or unsubstituted conjugated six-membered carbocyclic group or heterocyclic group, a di(C.sub.1-6 alkyl)amino group, a di(C.sub.6-12 aryl)amino group, a tri(C.sub.1-6 alkyl)silyl group, a substituted or unsubstituted C.sub.3-6 alkenyl group, a substituted or unsubstituted C.sub.3-6 alkynyl group, or a substituted or unsubstituted ester group. The electrolyte additive, electrolyte, and lithium ion secondary battery comprising same of the present disclosure achieve better protection of electrodes, improve the cycle performance of the battery, and achieve lower post-cycle impedance.

R.sub.1-L-R.sub.2(1)

Provided is an electrolyte additive, including a compound of formula (1), wherein R.sub.1 is selected from a substituted or unsubstituted five-membered heterocyclic group, a substituted or unsubstituted six-membered heterocyclic group, or a substituted or unsubstituted amino group; L is a sulfone group, a sulfate ester group, or a sulfonate ester group; and R.sub.2 is selected from a substituted or unsubstituted C.sub.1-18 alkyl group, a substituted or unsubstituted C.sub.1-18 alkoxy group, a substituted or unsubstituted conjugated five-membered carbocyclic group or heterocyclic group, a substituted or unsubstituted conjugated six-membered carbocyclic group or heterocyclic group, a di(C.sub.1-6 alkyl)amino group, a di(C.sub.6-12 aryl)amino group, a tri(C.sub.1-6 alkyl)silyl group, a substituted or unsubstituted C.sub.3-6 alkenyl group, a substituted or unsubstituted C.sub.3-6 alkynyl group, or a substituted or unsubstituted ester group. The electrolyte additive, electrolyte, and lithium ion secondary battery comprising same of the present disclosure achieve better protection of electrodes, improve the cycle performance of the battery, and achieve lower post-cycle impedance.

R.sub.1-L-R.sub.2(1)

The present disclosure relates to a compound of formula (I) or a pharmaceutically acceptable salt thereof for use in the prevention or treatment of a neurodegenerative disease. Furthermore, the present invention relates to the non-therapeutic use of said compounds for maintaining and/or improving neurological and/or brain function, preferably as a food or nutraceutical composition.

The present disclosure relates to a compound of formula (I) or a pharmaceutically acceptable salt thereof for use in the prevention or treatment of a neurodegenerative disease. Furthermore, the present invention relates to the non-therapeutic use of said compounds for maintaining and/or improving neurological and/or brain function, preferably as a food or nutraceutical composition.

Provided are a compound including a cleavable linker, a use thereof, and an intermediate compound for preparing the same, and more particularly, the compound including a cleavable linker of the present invention may include an active agent (for example, a drug, a toxin, a ligand, a probe for detection, etc.) having a specific function or activity, a SO.sub.2 functional group which is capable of selectively releasing the active agent, and a functional group which triggers a chemical reaction, a physicochemical reaction and/or a biological reaction by external stimulation, and may further include a ligand (for example, oligopeptide, polypeptide, antibody, etc.) having binding specificity for a desired target receptor.

Disclosed are a monomer for a polymer gel, a polymer gel and a preparation method therefor. The preparation method includes: reacting 4,4,4-trihydroxytriphenylmethane with tert-butyldimethylchlorosilane to obtain TPC-OTBS; reacting 4,4,4-trihydroxy triphenylmethane with sulfuryl fluoride in the presence of triethylamine to prepare TPC-OSO.sub.2F; and dissolving the TPC-OTBS and TPC-OSO.sub.2F in DMF, then adding DBU and ultrasonically dispersing same until uniform, and letting same stand to obtain a polymer gel. The gel obtained by the present invention can selectively adsorb an organic solvent by means of electrostatic interaction and Van der Waals force. The surface and internal morphologies of a solid material are characterized by SEM and TEM, in which the porous morphology of the solid material is found, and most of the pores are macropores.