Compounds of formula (I) wherein the substituents are as defined in claim 1, useful as plant growth regulators and/or seed germination promoters.

##STR00001##

Pyrimidine derivatives of formula (I): ##STR00001##
optionally with a detectable isotope, pharmaceutical composition and method of preparation thereof. Pyrimidine derivatives for use in treatment or prevention of bacterial infection in a host mammal in need of such treatment or prevention and use as inhibitors of biofilm formation on a surface of biomaterial or medical device, particularly of cardiovascular device such as prosthetic heart valve or pacemakers. Pyrimidine derivatives for use as radiotracer in diagnosing or prognosing bacterial infection in a host mammal.

Pyrimidine derivatives of formula (I): ##STR00001##
optionally with a detectable isotope, pharmaceutical composition and method of preparation thereof. Pyrimidine derivatives for use in treatment or prevention of bacterial infection in a host mammal in need of such treatment or prevention and use as inhibitors of biofilm formation on a surface of biomaterial or medical device, particularly of cardiovascular device such as prosthetic heart valve or pacemakers. Pyrimidine derivatives for use as radiotracer in diagnosing or prognosing bacterial infection in a host mammal.

The present invention provides processes for the preparation of 2-fluoroadenine, as well as certain intermediates useful in the preparation of 2′-deoxy-4′-C-ethynyl-2-fluoroadenosine (EFdA): EFdA.

##STR00001##

The present invention provides processes for the preparation of 2-fluoroadenine, as well as certain intermediates useful in the preparation of 2′-deoxy-4′-C-ethynyl-2-fluoroadenosine (EFdA): EFdA.

##STR00001##

Purine-derived covalent probes (e.g., halo or di-halo-substituted purine based covalent probes) and related ligands are described. The compounds can be used to identify reactive nucleophilic amino acid residues, such as reactive cysteine residues, in proteins and to modify the activity of proteins with reactive nucleophilic amino acid residues (e.g., reactive cysteine residues) via the formation of protein adducts comprising the ligands Modified proteins prepared from the probes and ligands are also described.

The present invention relates to a method for preparing a 2-fluoropurine marked with the radioisotope .sup.18F comprising a fluorination step for a 2-nitropurine derivative. The present invention comprises a 2-fluoropurine derivative marked with the radioisotope .sup.18F which can be obtained by or during a method according to the invention and its various uses.

The present invention relates to a method for preparing a 2-fluoropurine marked with the radioisotope .sup.18F comprising a fluorination step for a 2-nitropurine derivative. The present invention comprises a 2-fluoropurine derivative marked with the radioisotope .sup.18F which can be obtained by or during a method according to the invention and its various uses.

The invention relates to novel compounds of the formula (I) ##STR00001##
in which the R.sup.1, R.sup.2a, R.sup.2b, R.sup.3, A.sup.1, A.sup.2, A.sup.3, A.sup.4, A.sup.5 and n radicals are each as defined above,
to the use thereof as acaricides and/or insecticides for controlling animal pests and to processes and intermediates for preparation thereof.

The invention relates to novel compounds of the formula (I) ##STR00001##
in which the R.sup.1, R.sup.2a, R.sup.2b, R.sup.3, A.sup.1, A.sup.2, A.sup.3, A.sup.4, A.sup.5 and n radicals are each as defined above,
to the use thereof as acaricides and/or insecticides for controlling animal pests and to processes and intermediates for preparation thereof.