Compounds and compositions are provided that comprise selective b-glucuronidase inhibitors. The compounds and compositions can ameliorate the side effects of chemotherapeutic agents and can improve the efficacy of such agents, including irinotecan and non-steroidal anti-inflammatory drugs.

Provided herein are compounds for use as photochromic molecular switches having very long thermal isomerization half-lives and switchable fluorescence properties both in solution and the solid state.

Preparation method for a polyurethane optical resin and applications thereof. The preparation method for the polyurethane optical resin comprises: a raw material composition comprising isocyanate and a polythiol compound undergoes a polymerization to produce the polyurethane optical resin. The turbidity value of the isocyanate used in the raw material composition is controlled at ?2 NTU. The polyurethane optical resin produced is applicable in manufacturing optical products.

The present invention relates to compounds of the formula I ##STR00001##
wherein the variables are defined in the claims and the specification, to their preparation and their use as fungicides.

The present invention relates to compounds of the formula I ##STR00001##
wherein the variables are defined in the claims and the specification, to their preparation and their use as fungicides.

The present invention relates to a compound for an organic optoelectric device, an organic optoelectric device, to which the compound is applied, and a display device, wherein the compound is represented by chemical formula 1. The detailed contents regarding chemical formula 1 are the same as defined in the specification.

A compound of formula (I) for use in the treatment of a condition or disorder associated with nicotinamide adenine dinucleotide phosphate oxidase.

A compound of formula (I) for use in the treatment of a condition or disorder associated with nicotinamide adenine dinucleotide phosphate oxidase.

The present invention relates to compounds of the formula I

##STR00001##

wherein the variables are defined in the claims and the specification, to their preparation and their use as fungicides.

An organic compound, an organic electroluminescent device comprising same, and an electronic apparatus. The compound uses silafluorenyl and carbazolyl substituted triazine as a core structure, and when the compound is used as a host material of an organic light-emitting layer, carrier balance in the organic light-emitting layer can be improved, the carrier recombination area can be widened, the generation and utilization efficiency of excitons can be improved, the luminous efficiency of a device can be improved, and the service life of the device can be prolonged.