A compound of Chemical Formula 1, and a photoelectric device, an image sensor, and an electronic device including the same are disclosed: ##STR00001## In Chemical Formula 1, each substituent is the same as defined in the detailed description.

A compound of Chemical Formula 1, and a photoelectric device, an image sensor, and an electronic device including the same are disclosed: ##STR00001## In Chemical Formula 1, each substituent is the same as defined in the detailed description.

A compound of Chemical Formula 1, and an organic photoelectric device, an image sensor, and an electronic device including the same are disclosed:

##STR00001##

In Chemical Formula 1, each substituent is the same as defined in the detailed description.

A compound of Chemical Formula 1, and an organic photoelectric device, an image sensor, and an electronic device including the same are disclosed:

##STR00001##

In Chemical Formula 1, each substituent is the same as defined in the detailed description.

The present disclosure relates to benzoselenophene-based compounds, method of preparing the benzoselenophene-based compounds, pharmaceutical compositions and antibody-drug conjugates including the benzoselenophene-based compounds.

The present disclosure relates to benzoselenophene-based compounds, method of preparing the benzoselenophene-based compounds, pharmaceutical compositions and antibody-drug conjugates including the benzoselenophene-based compounds.

A compound of formula (I):

##STR00001##

as described herein and methods and uses thereof as for mass tagging a biosensor or biologically active material.

A compound of formula (I):

##STR00001##

as described herein and methods and uses thereof as for mass tagging a biosensor or biologically active material.

The invention belongs to the field of biomedical research involving the 1,3,4-selenyldiazo derivatives that have cell protective activity. Because there are not so many heterocyclic selenium compounds, we synthesized a new type of selenium analog of BPTES. As the isoacceptor of BPTES, the compounds have antitumor activity, anti-oxidation and cell protection function. Currently many drugs contain the thiodiazo motif, so synthesis of selenyldiazo functional group could further optimize these drugs and are important in new drug development and application.

The invention belongs to the field of biomedical research involving the 1,3,4-selenyldiazo derivatives that have cell protective activity. Because there are not so many heterocyclic selenium compounds, we synthesized a new type of selenium analog of BPTES. As the isoacceptor of BPTES, the compounds have antitumor activity, anti-oxidation and cell protection function. Currently many drugs contain the thiodiazo motif, so synthesis of selenyldiazo functional group could further optimize these drugs and are important in new drug development and application.