The present disclosure provides a novel compound of the following Chemical Formula 1 and an organic light emitting device including the same,

##STR00001## wherein all the variables are descried herein.

A rhein amide derivative and a preparation method and use thereof, and a drug for treating hepatocellular carcinoma (HCC) caused by a specific expression of RECQL4. The rhein amide derivative has a structure shown in any one of formulas I to IV. The rhein amide derivative has a relatively strong inhibitory effect on proliferation of HCC cells SNU-398 with RECQL4 high expression. Development of a novel anti-cancer drug for RECQL4 high expression-caused HCC and clinical personalized treatment of the RECQL4 high expression-caused HCC.

The present invention relates to: an organic compound represented by a combination of Chemical Formulas 1 and 2; an organic optoelectronic device comprising the organic compound; and a display device.

##STR00001##

Provided are an arylamine compound and an organic light-emitting device including the same.

The present invention addresses the issue of providing: a novel squarylium compound that has high light-emission efficiency, in particular little reduction in light-emission efficiency in a solid membrane, and is capable of emitting a near-infrared light having excellent light resistance; and a light-emitting composition and a light-emitting film that contain said squarylium compound. This squarylium compound is characterized by having a structure indicated by general formula (1). ##STR00001##

A compound with anti-drug resistant bacteria activity having the following formula ##STR00001##
is disclosed. A method of preparing the compound of formula (I) is also disclosed.

An aromatic amine derivative represented by the following formula (1):

##STR00001##

wherein at least one of R.sub.1 to R.sub.8 is a group other than a hydrogen atom, Ar.sub.1 to Ar.sub.4 are a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms.

The present invention provides a polymerizable compound that reduces, for example, the likelihood of crystals precipitating in a polymerizable composition including the polymerizable compound and enables the polymerizable composition to have high preservation stability and a polymerizable composition including the polymerizable compound which reduces the likelihood of inconsistencies being formed in a film-like polymer produced by polymerizing the polymerizable composition. Also provided are a polymer-produced by polymerizing the polymerizable composition and an optically anisotropic body including the polymer. The present invention provides the compound represented by General Formula (I), a composition including the compound, a polymer produced by polymerizing the composition, and an optically anisotropic body including the polymer.

The invention provides a material having a structure including three or more anthracene structures per molecule as a photosensitive unit. That structure allows the material to remain in a liquid state at room temperature due to its reduced crystallinity. After coated on an application member in a liquid state, it is irradiated with light from outside so that it can be cured by way of photocrosslinking, and when heated, it returns back to the original state as the linkage is cleaved. By use of this material it is possible to form a reversibly detachable layer that serves as an adhesive layer at an interface to an application member and a coating layer at the surface of the application member.

Disclosed in the present invention are an emodin succinyl ester compound, a preparation method therefor and a use thereof, the emodin succinyl ester compound having the structure as represented by formula I (R being a C.sub.1-5 alkyl group). The method provided in the present invention has a simple method course, and may effectively save time in synthesis and reduce costs, being simple to operate, being easy to implement, and being suitable for industrial production. Experiments show that the emodin succinyl ester compound of the present invention may better promote the healing of diabetic wounds than emodin, and may be used for preparing a drug for promoting the healing of diabetic wounds. Moreover, it has been confirmed by means of performing pharmacological experiments on rats suffering from experimentally mixed hyperlipidemia that the emodin succinyl ester compound of the present invention is superior to emodin, and has the advantages of having a remarkable blood fat lowering effect, being safe, being simple and convenient to administer, the raw materials being low cost and readily available, and being easy to transport and store.