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.

The present invention relates to a new process for the synthesis of 17-hydroxy-des-A-androst-9,10-en-5-one, the compound of the following formula (1), which can be used as an intermediate in the synthesis of retroprogesterones.

The present invention relates to an adamantane derivative compound and an organic light-emitting diode (OLED) including the same, and more particularly, to an adamantane derivative compound capable of being used in an OLED and an OLED having excellent properties such as low voltage and high efficiency using the compound.

The present invention relates to a new process for the synthesis of 17-hydroxy-des-A-androst-9,10-en-5-one, the compound of the following formula (1), which can be used as an intermediate in the synthesis of retroprogesterones.

##STR00001##

In one aspect, compounds of Formula AA, or a pharmaceutically acceptable salt thereof, are featured: ##STR00001## or a pharmaceutically acceptable salt thereof, wherein the variables shown in Formula A can be as defined anywhere herein.

An electrochromic compound represented by the following formula (1) is provided:

##STR00001## where each of R.sub.1 to R.sub.9 and Ar.sub.1 to Ar.sub.6 independently represents one of a hydrogen atom, a halogen atom, a monovalent organic group, a group in which two or more aryl and/or heteroaryl groups are bound to each other via a covalent bond, a group in which two or more aryl and/or heteroaryl groups are condensed with each other to form a ring, and a polymerizable functional group; and at least one of Ar.sub.1 to Ar.sub.6 represents an aryl group, a heteroaryl group, a group in which two or more aryl and/or heteroaryl groups are bound to each other via a covalent bond, or a group in which at least two aryl or heteroaryl groups are condensed with each other to form a ring.

Novel compounds of the structural formula (I), and the pharmaceutically acceptable salts thereof, are agonists of G-protein coupled receptor 40 (GPR40) and may be useful in the treatment, prevention and suppression of diseases mediated by the G-protein-coupled receptor 40. The compounds of the present invention may be useful in the treatment of Type 2 diabetes mellitus, and of conditions that are often associated with this disease, including obesity and lipid disorders, such as mixed or diabetic dyslipidemia, hyperlipidemia, hypercholesterolemia, and hypertriglyceridemia. ##STR00001##

There are described ROR modulators of the formula (I),

##STR00001##

or stereoisomers, tautomers, pharmaceutically acceptable salts, solvates, or prodrugs thereof, wherein all substituents are defined herein. Also provided are pharmaceutical compositions comprising the same. Such compounds and compositions are useful in methods for modulating ROR activity in a cell and methods for treating a subject suffering from a disease or disorder in which the subject would therapeutically benefit from modulation of ROR activity, for example, autoimmune and/or inflammatory disorders.

A method to generate cyclic hydrocarbons from farnesene to increase both the density and net heat of combustion of the product fuels.

The present invention discloses tricyclic compounds of formula (I) or salt thereof and their process for synthesis. Further, the present invention relates to the use of these novel tricyclic compounds of formula (I) or salt thereof as insect repellents. ##STR00001##