The liquid crystal composition contains a compound contributing to high stability to heat or ultraviolet light, has negative dielectric anisotropy and has a nematic phase, and may contain a specific compound having high negative dielectric anisotropy as a first component, a specific compound having a high maximum temperature or small viscosity as a second component, and a specific compound having a polymerizable group.

The liquid crystal composition contains a compound contributing to high stability to heat or ultraviolet light, has negative dielectric anisotropy and has a nematic phase, and may contain a specific compound having high negative dielectric anisotropy as a first component, a specific compound having a high maximum temperature or small viscosity as a second component, and a specific compound having a polymerizable group.

Provided are a compound having an effect on preventing photolysis of a liquid crystal composition, and high solubility in the liquid crystal composition, a liquid crystal composition containing the compound and a liquid crystal display device including the composition.

A compound is represented by formula (1), a liquid crystal composition contains the compound and a liquid crystal display device uses the composition.

##STR00001##

In formula (1), for example, R1 is alkyl having 1 to 10 carbons; R2 is hydrogen, hydroxy, oxy radical or alkyl; ring A1, ring A2 and ring A3 are independently 1,4-cyclohexylene, 1,4-phenylene or pyridine-2,5-diyl; Z1 and Z2 are independently a single bond or alkylene; and a and b are independently 0 or 1.

Provided are a compound having an effect on preventing photolysis of a liquid crystal composition, and high solubility in the liquid crystal composition, a liquid crystal composition containing the compound and a liquid crystal display device including the composition.

A compound is represented by formula (1), a liquid crystal composition contains the compound and a liquid crystal display device uses the composition.

##STR00001##

In formula (1), for example, R1 is alkyl having 1 to 10 carbons; R2 is hydrogen, hydroxy, oxy radical or alkyl; ring A1, ring A2 and ring A3 are independently 1,4-cyclohexylene, 1,4-phenylene or pyridine-2,5-diyl; Z1 and Z2 are independently a single bond or alkylene; and a and b are independently 0 or 1.

Provided herein are piperidine alkaloids and uses thereof in neurological disorders and physical enhancement applications.

Provided herein are piperidine alkaloids and uses thereof in neurological disorders and physical enhancement applications.

This invention relates to compounds that can be used to treat viral infections. The compounds are papain-like protease (PLpro) inhibitors.

This invention relates to compounds that can be used to treat viral infections. The compounds are papain-like protease (PLpro) inhibitors.

A method for manufacturing amidomagnesium halogenides and admixtures thereof with alkali metal salts in aparotic, organic solvents, compounds obtained according to the method and use thereof in synthesis chemistry, for example for deprotonizing enolizable systems, functionalized aromatics and heteroaromatics.

A method for manufacturing amidomagnesium halogenides and admixtures thereof with alkali metal salts in aparotic, organic solvents, compounds obtained according to the method and use thereof in synthesis chemistry, for example for deprotonizing enolizable systems, functionalized aromatics and heteroaromatics.