Compounds of formula (I), wherein R.sub.1 is as defined in the claims, exhibit COMT enzyme inhibiting activity and are thus useful as COMT inhibitors. Methods of treatment and pharmaceutical dosage forms are also disclosed.

The invention relates to a compound or a salt thereof of formula [1],

##STR00001##

a fungicidal composition containing the compound or a salt thereof, a method for controlling plant disease occurring from phytopathogenic microorganism including the step of applying the fungicidal composition and a production method of the compound.

It discloses a compound of formula I that inhibits the activities of numerous of protein kinases involving the signaling of inflammatory cytokines, therefore, the compound can be used for treating cancers, autoimmune diseases and inflammatory diseases.

It discloses a compound of formula I that inhibits the activities of numerous of protein kinases involving the signaling of inflammatory cytokines, therefore, the compound can be used for treating cancers, autoimmune diseases and inflammatory diseases.

It discloses a compound of formula I that inhibits the activities of numerous of protein kinases involving the signaling of inflammatory cytokines, therefore, the compound can be used for treating cancers, autoimmune diseases and inflammatory diseases.

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 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##

This application relates to processes and intermediates for the preparation of the PD-1/PD-L1 inhibitor (R)-1-((7-cyano-2-(3′-((2-(difluoromethyl)-7-((3-hydroxypyrrolidin-1-yl)methyl)pyrido[3,2-d]pyrimidin-4-yl)amino)-2,2′-dimethyl-[1,1′-biphenyl]-3-yl)benzo[d]oxazol-5-yl)methyl)piperidine-4-carboxylic acid, and salts and crystalline forms thereof, where the PD-1/PD-L1 inhibitor and solid forms and salt forms thereof are useful in the treatment of various diseases including infectious diseases and cancer.

The present disclosure relates to 4,5-dihydroxy-2-(4-methylbenzyl) isophthalonitrile solvates, including hydrates, and crystalline forms thereof and to methods for preparing said solvates and crystalline forms thereof.

The present disclosure relates to 4,5-dihydroxy-2-(4-methylbenzyl) isophthalonitrile solvates, including hydrates, and crystalline forms thereof and to methods for preparing said solvates and crystalline forms thereof.