A polycyclic compound according to an embodiment of the inventive concept is represented by the following Formula 1:

##STR00001##

In Formula 1, Ar.sub.1 and Ar.sub.2 are each independently substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms for forming a ring, where Ar.sub.1 and Ar.sub.2 may combine with each other to form a ring, and A is represented by the following Formula 2-1 or 2-2:

##STR00002##

A polycyclic compound according to an embodiment of the inventive concept is represented by the following Formula 1:

##STR00001##

In Formula 1, Ar.sub.1 and Ar.sub.2 are each independently substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms for forming a ring, where Ar.sub.1 and Ar.sub.2 may combine with each other to form a ring, and A is represented by the following Formula 2-1 or 2-2:

##STR00002##

Provided is a heterocyclic compound of Chemical Formula 1: ##STR00001##
and an organic light emitting device including the same.

An organic compound represented by formula [1] or [2]:

##STR00001##

where X.sub.1 to X.sub.18 and X.sub.21 to X.sub.38 are each independently selected from a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an amino group, an aryl group, a heterocyclic group, an aryloxy group, a heteroaryloxy group, a silyl group, and a cyano group, in which at least one of X.sub.1 to X.sub.8 and at least one of X.sub.21 to X.sub.28 are substituted or unsubstituted amino groups; and each Y is oxygen, sulfur, selenium, tellurium, or a CR.sub.1CR.sub.2 group and may be the same or different, in which R.sub.1 and R.sub.2 are each independently selected from a hydrogen atom, an alkyl group, an alkoxy group, an amino group, an aryl group, a heterocyclic group, an aryloxy group, a heteroaryloxy group, a silyl group, or a cyano group.

An organic compound represented by formula [1] or [2]:

##STR00001##

where X.sub.1 to X.sub.18 and X.sub.21 to X.sub.38 are each independently selected from a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an amino group, an aryl group, a heterocyclic group, an aryloxy group, a heteroaryloxy group, a silyl group, and a cyano group, in which at least one of X.sub.1 to X.sub.8 and at least one of X.sub.21 to X.sub.28 are substituted or unsubstituted amino groups; and each Y is oxygen, sulfur, selenium, tellurium, or a CR.sub.1CR.sub.2 group and may be the same or different, in which R.sub.1 and R.sub.2 are each independently selected from a hydrogen atom, an alkyl group, an alkoxy group, an amino group, an aryl group, a heterocyclic group, an aryloxy group, a heteroaryloxy group, a silyl group, or a cyano group.

Provided herein is a compound of Formula (I-I), or a pharmaceutically acceptable salt thereof, wherein the variables are defined herein. Also provided herein are pharmaceutical compositions comprising a compound of Formula (I-I), and methods of using the compounds, e.g. in the treatment of CNS-related disorders. ##STR00001##

There is disclosed a compound Formula I

##STR00001##

In Formula I: Z is CR.sup.4R.sup.5, C═CR.sup.4R.sup.5, SiR.sup.4R.sup.5, GeR.sup.4R.sup.5, NR.sup.4a, PR.sup.4a, P(O)R.sup.4a, O, S, SO, SO.sub.2, Se; SeO, SeO.sub.2, Te, TeO, or TeO.sub.2; R.sup.1 - R.sup.3 are the same or different at each occurrence and are D, aryl, heteroaryl, alkyl, amino, silyl, germyl, deuterated aryl, deuterated heteroaryl, deuterated alkyl, deuterated amino, deuterated silyl, or deuterated germyl, where two groups selected from R.sup.1, R.sup.2, and R.sup.3 can be joined together to form a fused ring; R.sup.4 - R.sup.5 are the same or different at each occurrence and are H, D, aryl, heteroaryl, alkyl, amino, silyl, germyl, deuterated aryl, deuterated heteroaryl, deuterated alkyl, deuterated amino, deuterated silyl, or deuterated germyl; R.sup.4a is alkyl, silyl, germyl, aryl, or a deuterated analog thereof; a is an integer from 0-4; b and c are the same or different and are an integer from 0-3.

There is disclosed a compound Formula I

##STR00001##

In Formula I: Z is CR.sup.4R.sup.5, C═CR.sup.4R.sup.5, SiR.sup.4R.sup.5, GeR.sup.4R.sup.5, NR.sup.4a, PR.sup.4a, P(O)R.sup.4a, O, S, SO, SO.sub.2, Se; SeO, SeO.sub.2, Te, TeO, or TeO.sub.2; R.sup.1 - R.sup.3 are the same or different at each occurrence and are D, aryl, heteroaryl, alkyl, amino, silyl, germyl, deuterated aryl, deuterated heteroaryl, deuterated alkyl, deuterated amino, deuterated silyl, or deuterated germyl, where two groups selected from R.sup.1, R.sup.2, and R.sup.3 can be joined together to form a fused ring; R.sup.4 - R.sup.5 are the same or different at each occurrence and are H, D, aryl, heteroaryl, alkyl, amino, silyl, germyl, deuterated aryl, deuterated heteroaryl, deuterated alkyl, deuterated amino, deuterated silyl, or deuterated germyl; R.sup.4a is alkyl, silyl, germyl, aryl, or a deuterated analog thereof; a is an integer from 0-4; b and c are the same or different and are an integer from 0-3.

Provided are a compound of Formula I or Formula IA, a composition comprising a compound of Formula I or Formula IA, uses of the compounds and compositions to modulate insect behaviour and methods for modulating insect behaviour. Also provided are biosensors for detecting an analyte in a sample, uses of the biosensor, and methods for detecting an analyte in a sample.

Provided are a compound of Formula I or Formula IA, a composition comprising a compound of Formula I or Formula IA, uses of the compounds and compositions to modulate insect behaviour and methods for modulating insect behaviour. Also provided are biosensors for detecting an analyte in a sample, uses of the biosensor, and methods for detecting an analyte in a sample.