A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and comprising an emission layer, wherein the interlayer further includes an electron transport region between the emission layer and the second electrode, the electron transport region includes a first compound of Formula 1 and a second compound of Formula 2, the first compound and the second compound are different from each other, and the second compound includes at least one π electron-deficient nitrogen-containing C.sub.1-C.sub.60 cyclic group, where Formulae 1 and 2 are described herein.

The present invention relates to a compound of formula 1 and an organic electronic device comprising an organic semiconductor layer, wherein at least one organic semiconductor layer comprises a compound of formula (1), wherein L.sup.1 has the formula (2) and L.sup.2 has the formula (3), wherein L.sup.1 and L.sup.2 are bonded at “*” via a single bond independently to the same or different arylene groups or heteroarylenes group of Ar.sup.1; and wherein X.sup.1, X.sup.2 are independently selected from O, S and Se; Ar.sup.1 is selected from substituted or unsubstituted C.sub.20 to C.sub.52 arylene or C.sub.14 to C.sub.64 heteroarylene, wherein the substituent of the substituted C.sub.20 to C.sub.52 arylene or C.sub.14 to C.sub.64 heteroarylene are independently selected from C.sub.1 to C.sub.12 alkyl, C.sub.1 to C.sub.12 alkoxy, CN, halogen, OH, C.sub.6 to C.sub.25 aryl and C.sub.2 to C.sub.21 heteroaryl; R.sup.1, R.sup.2 are independently selected from substituted or unsubstituted C.sub.1 to C.sub.16 alkyl, wherein the substituent of substituted C.sub.1 to C.sub.16 alkyl is selected from C.sub.6 to C.sub.18 arylene or C.sub.2 to C.sub.12 heteroarylene; R.sup.3, R.sup.4 are independently selected from substituted or unsubstituted C.sub.1 to C.sub.16 alkyl, substituted or unsubstituted C.sub.6 to C.sub.18 arylene, C.sub.2 to C.sub.20 heteroarylene, wherein the substituent of substituted C.sub.1 to C.sub.16 alkyl, the substituent of the substituted C.sub.6 to C.sub.18 arylene, C.sub.2 to C.sub.20 heteroarylene are independently selected from C.sub.6 to C.sub.18 arylene or C.sub.2 to C.sub.12 heteroarylene; n is selected from 1 to 5, wherein n is an integer number.

The present invention relates to a compound of formula 1 and an organic electronic device comprising an organic semiconductor layer, wherein at least one organic semiconductor layer comprises a compound of formula (1), wherein L.sup.1 has the formula (2) and L.sup.2 has the formula (3), wherein L.sup.1 and L.sup.2 are bonded at “*” via a single bond independently to the same or different arylene groups or heteroarylenes group of Ar.sup.1; and wherein X.sup.1, X.sup.2 are independently selected from O, S and Se; Ar.sup.1 is selected from substituted or unsubstituted C.sub.20 to C.sub.52 arylene or C.sub.14 to C.sub.64 heteroarylene, wherein the substituent of the substituted C.sub.20 to C.sub.52 arylene or C.sub.14 to C.sub.64 heteroarylene are independently selected from C.sub.1 to C.sub.12 alkyl, C.sub.1 to C.sub.12 alkoxy, CN, halogen, OH, C.sub.6 to C.sub.25 aryl and C.sub.2 to C.sub.21 heteroaryl; R.sup.1, R.sup.2 are independently selected from substituted or unsubstituted C.sub.1 to C.sub.16 alkyl, wherein the substituent of substituted C.sub.1 to C.sub.16 alkyl is selected from C.sub.6 to C.sub.18 arylene or C.sub.2 to C.sub.12 heteroarylene; R.sup.3, R.sup.4 are independently selected from substituted or unsubstituted C.sub.1 to C.sub.16 alkyl, substituted or unsubstituted C.sub.6 to C.sub.18 arylene, C.sub.2 to C.sub.20 heteroarylene, wherein the substituent of substituted C.sub.1 to C.sub.16 alkyl, the substituent of the substituted C.sub.6 to C.sub.18 arylene, C.sub.2 to C.sub.20 heteroarylene are independently selected from C.sub.6 to C.sub.18 arylene or C.sub.2 to C.sub.12 heteroarylene; n is selected from 1 to 5, wherein n is an integer number.

The present application provides a light-emitting device and an electronic apparatus including the light-emitting device. The light-emitting device includes: a first electrode; a second electrode facing the first electrode; an interlayer between the first electrode and the second electrode and including an emission layer; and an electron transport layer and an electron injection layer between the emission layer and the second electrode, wherein the electron transport layer includes a mixed layer including a first compound and a second compound, the first compound includes a C.sub.14-C.sub.60 carbocyclic group, and a triplet energy of the first compound is about 2.0 electron volts or lower, the second compound includes a π electron-depleted nitrogen-containing C.sub.1-C.sub.60 cyclic group, and a triplet energy of the second compound is about 2.5 electron volts or greater, and the electron injection layer includes a metal halide and a lanthanum-based metal.

The present invention relates to novel hydrolytically stable carbon-cyclic 5-aza-2-deoxycytidine and carbocyclic 5-aza-cytidine compounds and pro-drugs thereof as hypomethylating agents.

##STR00001##

The present invention relates to novel hydrolytically stable carbon-cyclic 5-aza-2-deoxycytidine and carbocyclic 5-aza-cytidine compounds and pro-drugs thereof as hypomethylating agents.

##STR00001##

The present invention concerns a compound having the following formula (I): ##STR00001##
as well as its use as a medicament, especially for its use for treating viral infections.

The present invention concerns a compound having the following formula (I): ##STR00001##
as well as its use as a medicament, especially for its use for treating viral infections.

The present specification relates to a compound represented by Chemical Formula 1, and an organic light emitting device including the same.

The invention features compounds, pharmaceutical compositions and methods for treating patients who have an EGFR-driven cancer of Formula I: ##STR00001##
wherein the variables are as defined herein.