Abstract:
Novel heterocyclic materials are disclosed. The materials contain a fused tetracyclic structure that can improve the properties of OLED devices when the novel heterocyclic materials are incorporated into such devices.
Abstract:
The invention relates to a compound of Formula I and methods of treating cystic fibrosis comprising the step of administering a therapeutically effective amount of a compound of Formula I to a patient in need thereof:
Abstract:
An organic semiconductor material is represented by the following formula (F):wherein A represents a cyclic conjugated skeleton structure formed of one or more aromatic rings, and R1 and R2 each independently represent a substituted or unsubstituted alkyl group. The organic semiconductor material has high electron mobility and high on/off ratio, and can form an organic semiconductor thin film by a solution process making use of its solution.
Abstract:
A semiconducting compound comprising the structure: where R1 to R4 independently comprise, but are not limited to, optionally substituted straight, branched or cyclic alkyl chains having 2 to 20 (e.g. 2 to 12) carbon atoms, alkoxy, amino, amido, silyl, alkyl, alkenyl, aryl or hetero aryl; where X1 and X2 independently comprise S, O, NR5 or SiR6R7 where R8 to R7 independently comprise C1 to C5 branched, straight or cyclic alkyl chains; and where Ar1 comprises a heterocyclic ring, and where n is an integer between 1 and 4.
Abstract:
Benzopyran and benzoxepin compounds of Formulas I and II, and including stereoisomers, geometric isomers, tautomer solvates, metabolites and pharmaceutically acceptable salts thereof, are useful for inhibiting lipid kinases including p110 alpha and other isoforms of PI3K, and for treating disorders such as cancer mediated by lipid kinases. Methods of using compounds of Formulas I and II for in vitro, in situ, and in vivo diagnosis, prevention or treatment of such disorders in mammalian cells, or associated pathological conditions, are disclosed.
Abstract:
The synthesis and activity of novel LpxA inhibitors is described, these inhibitors present antibacterial activity. The compounds were designed based on a receptor model developed using the crystal structure of LpxA and are arranged to have a favorable binding interaction at the active site of the enzyme. In particular, the compounds present the following formula (I) where V, W, X, Y and Z can be independently C, S, N or O and P1, P2 and P3 are ligands to bind to the three points of the proposed pharmacophore model. They can be chosen from a variety of groups.
Abstract:
A compound represented by the following general formula (1) or a salt thereof. R1 represents a halogen atom and so on; R2 and R3 each represent a hydrogen atom and so on; R4 and R5 each represent a hydrogen atom and so on, or R4 and R5 may form an oxo group; Ra and Rb each represent a lower alkyl group optionally having a substituent and so on, or they may bind to each other to form a nitrogen-containing heterocyclic ring which may be substituted by one or plural Rc; Rc represents an aryl group optionally having a substituent and so on; ring A represents a benzene ring and so on; and m represents 0, 1 or 2.
Abstract:
The present invention provides a sulfonyl group-contained compound, organic electroluminescent device using the same, and a preparation method thereof. The sulfonyl group-contained compound is presented by the following formula: in which R1, R2, and R3 are alkyl groups, aromatic ring groups, —CN or —OCH3 and R1, R2, and R3 are linked in position 2 or 3 of benzene ring. The sulfonyl group-contained compound of the present invention combines three thiofluorenes to form a novel sulfonyl group-contained compound with dendrimer structure, which combines properties of electron affinity and electron transportation of thiofluorene and also combines dimension property of dendrimer structure. When the sulfonyl group-contained compound is used in a light-emitting layer or an electron transport layer of an organic electroluminescent device, the efficiency and the lifespan of the organic electroluminescent device can be increased.
Abstract:
The present invention provides a compound of formula I or a pharmaceutically acceptable salt thereof; and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition.