A specific nitrogen-containing heterocyclic compound having a urea structure, an electron transporting material containing the nitrogen-containing heterocyclic compound, and an organic electroluminescence device including a light emitting layer and an electron transporting layer between a cathode and an anode in which the electron transporting layer includes the electron transporting material or the nitrogen-containing heterocyclic derivative. An organic EL device exhibiting high emission efficiency even at low voltage and a material for organic EL devices are described.

A specific nitrogen-containing heterocyclic compound having a urea structure, an electron transporting material containing the nitrogen-containing heterocyclic compound, and an organic electroluminescence device including a light emitting layer and an electron transporting layer between a cathode and an anode in which the electron transporting layer includes the electron transporting material or the nitrogen-containing heterocyclic derivative. An organic EL device exhibiting high emission efficiency even at low voltage and a material for organic EL devices are described.

This invention relates to novel Quinazoline-2,4(1H,3H)-dione derivatives of Formula (I): ##STR00001## and their use as TRPC5 modulators, pharmaceutical compositions containing the same, and methods of using the same as agents for the treatment of TRPC5 receptor mediated disorders or conditions. R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have meanings given in the description.

This invention relates to novel Quinazoline-2,4(1H,3H)-dione derivatives of Formula (I): ##STR00001## and their use as TRPC5 modulators, pharmaceutical compositions containing the same, and methods of using the same as agents for the treatment of TRPC5 receptor mediated disorders or conditions. R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have meanings given in the description.

The present invention provides a novel heterocyclic derivative or a pharmaceutically acceptable salt thereof. For example, the present invention provides a heterocyclic derivative of the general formula [1] or its tautomer, or a pharmaceutically acceptable salt thereof: ##STR00001##
wherein R.sup.1 and R.sup.2 are the same or different aromatic rings, etc., and ring A is a heterocyclic ring. The compound of the invention or a pharmaceutically acceptable salt thereof has potent mPGES-1 inhibiting activity and is useful as an agent for the treatment or prevention of a disease, such as rheumatoid arthritis, osteoarthritis, temporomandibular joint disorders, low back pain, endometriosis, dysmenorrhea, overactive bladder, malignant tumors or neurodegenerative disease.

The present invention provides a novel heterocyclic derivative or a pharmaceutically acceptable salt thereof. For example, the present invention provides a heterocyclic derivative of the general formula [1] or its tautomer, or a pharmaceutically acceptable salt thereof: ##STR00001##
wherein R.sup.1 and R.sup.2 are the same or different aromatic rings, etc., and ring A is a heterocyclic ring. The compound of the invention or a pharmaceutically acceptable salt thereof has potent mPGES-1 inhibiting activity and is useful as an agent for the treatment or prevention of a disease, such as rheumatoid arthritis, osteoarthritis, temporomandibular joint disorders, low back pain, endometriosis, dysmenorrhea, overactive bladder, malignant tumors or neurodegenerative disease.

A method for localizing and quantifying S1R role in nociceptive processing; for providing a guide to providing an analgesic therapy; of using an S1R selective ligand as a biomarker for pathphysiological study of memory deficits and cognitive disorders; or of detecting increased S1R density at the site of nerve injury arising from neuropathic pain comprising using as a probe at least one SR1 selective compound or radioligand of the general formula III′, or IV′: ##STR00001##

A method for localizing and quantifying S1R role in nociceptive processing; for providing a guide to providing an analgesic therapy; of using an S1R selective ligand as a biomarker for pathphysiological study of memory deficits and cognitive disorders; or of detecting increased S1R density at the site of nerve injury arising from neuropathic pain comprising using as a probe at least one SR1 selective compound or radioligand of the general formula III′, or IV′: ##STR00001##

This invention provides compounds of formulas (I)-(XIV) as defined in the specification, and pharmaceutical compositions comprising the same, and methods of inhibiting, treating, or abrogating a molluscum contagiosum virus infection in a subject using compounds or compositions of the invention:

##STR00001##

This invention provides compounds of formulas (I)-(XIV) as defined in the specification, and pharmaceutical compositions comprising the same, and methods of inhibiting, treating, or abrogating a molluscum contagiosum virus infection in a subject using compounds or compositions of the invention:

##STR00001##