An organic electroluminescence device includes an anode, a cathode, a first emitting layer, and a second emitting layer provided between the first emitting layer and the cathode, in which the first emitting layer includes, as a first host material, a first compound that includes at least one group represented by a formula (11) below, the first compound being represented by a formula (1) below, the second emitting layer includes a second compound represented by a formula (2A) below as a second host material, and the first emitting layer is in direct contact with the second emitting layer.

##STR00001##

An organic electroluminescence device includes an anode, a cathode, a first emitting layer, and a second emitting layer provided between the first emitting layer and the cathode, in which the first emitting layer contains a first compound represented by a formula (101) below as a first host material, the second emitting layer contains a second compound represented by a formula (2) below as a second host material, and the first emitting layer is in direct contact with the second emitting layer.

##STR00001##

An organic electroluminescence device includes an anode, a cathode, a first emitting layer, and a second emitting layer provided between the first emitting layer and the cathode, in which the first emitting layer contains a first compound represented by a formula (101) below as a first host material, the second emitting layer contains a second compound represented by a formula (2) below as a second host material, and the first emitting layer is in direct contact with the second emitting layer.

##STR00001##

The present invention relates to a real-time fluorescence imaging sensor for measuring glutathione in the endoplasmic reticulum (ER) and a method for producing same. More specifically, the present invention relates to a new compound for measuring glutathione in the endoplasmic reticulum (ER), a method for producing the new compound, a real-time imaging sensor for measuring glutathione in the endoplasmic reticulum (ER) comprising the new compound, a method for producing same, and a method for measuring glutathione in the endoplasmic reticulum (ER) by using the imaging sensor.

An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one layer of the organic layer(s) contains a compound represented by the following formula, has low driving voltage and excellent durability.

##STR00001##

(X.sup.1 to X.sup.11 represent CR.sup.0 or N, and R.sup.0 represents a hydrogen atom or a substituent. Adjacent two of X.sup.1 to X.sup.11 each independently represent at least CR.sup.0, R.sup.0s of the adjacent two CR.sup.0s are bonded to each other to form a ring, and only one R.sup.0 of the adjacent two CR.sup.0s represents an aryl group or a heteroaryl group.)

An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one layer of the organic layer(s) contains a compound represented by the following formula, has low driving voltage and excellent durability.

##STR00001##

(X.sup.1 to X.sup.11 represent CR.sup.0 or N, and R.sup.0 represents a hydrogen atom or a substituent. Adjacent two of X.sup.1 to X.sup.11 each independently represent at least CR.sup.0, R.sup.0s of the adjacent two CR.sup.0s are bonded to each other to form a ring, and only one R.sup.0 of the adjacent two CR.sup.0s represents an aryl group or a heteroaryl group.)

This invention relates to photoswitchable inhibitors of histone deacetylases and methods of using the same.

This invention relates to photoswitchable inhibitors of histone deacetylases and methods of using the same.

The present invention relates to peptide conjugates of cytotoxins such as topoisomerase I inhibitors which are useful for the treatment of diseases such as cancer.

The present invention relates to peptide conjugates of cytotoxins such as topoisomerase I inhibitors which are useful for the treatment of diseases such as cancer.