Provided herein are Aminopurine compounds of Formula I:

##STR00001## or pharmaceutically acceptable salts, tautomers, isotopologues, or stereoisomers thereof, wherein R.sup.1, R.sup.2, and R.sup.3 are as defined herein, compositions comprising an effective amount of an Aminopurine Compound, and methods for treating or preventing animal and human protozoal infections.

Provided herein are Aminopurine compounds of Formula I:

##STR00001## or pharmaceutically acceptable salts, tautomers, isotopologues, or stereoisomers thereof, wherein R.sup.1, R.sup.2, and R.sup.3 are as defined herein, compositions comprising an effective amount of an Aminopurine Compound, and methods for treating or preventing animal and human protozoal infections.

The present invention relates to compounds of the formulae (1) to (4), which are suitable for use in electronic devices, in particular organic electroluminescent devices, to intermediate compounds for the compounds or formulae (1) to (4) and to electronic devices, which comprise the compounds of formulae (1) to (4).

The present application relates to a compound of Chemical Formula 1 and an organic light emitting device including the same.

The present application relates to a compound of Chemical Formula 1 and an organic light emitting device including the same.

Provided are a compound that further improves the performance of an organic EL device, the organic electroluminescence device with more improved device performance, and electronic device including such an organic electroluminescence device, in which the compound is represented by the following formula (1):

##STR00001## (each symbol in the formula (1) is as defined in the specification), the organic electroluminescence device contains the compound, and the electronic device includes the organic electroluminescence device.

Provided are a compound that further improves the performance of an organic EL device, the organic electroluminescence device with more improved device performance, and electronic device including such an organic electroluminescence device, in which the compound is represented by the following formula (1):

##STR00001## (each symbol in the formula (1) is as defined in the specification), the organic electroluminescence device contains the compound, and the electronic device includes the organic electroluminescence device.

The present invention relates to compounds of the formulae (1) to (4), which are suitable for use in electronic devices, in particular organic electroluminescent devices, to intermediate compounds for the compounds or formulae (1) to (4) and to electronic devices, which comprise the compounds of formulae (1) to (4).

The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.

The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.