Abstract:
The present disclosure provides a benzene fused heterocyclic derivative of Formula (I): is a single or double bond; n is an integer of 0 or 1; A is —CH2—, —CH(OH)—, or —C(O)—; G is C or N; X is —CH2—, O, or —C(O)—; Y is alkyl, aryl, or heterocyclic alkyl optionally substituted with at least one substituent independently selected from a group consisting of: H, halogen, alkyl, alkyl substituted with at least one halogen, aryl, aryl substituted with at least one halogen, —NRy1Ry2, —ORy1, —Ry1C(O)Ry3, —C(O)Ry1, —C(O)ORy2, —C(O)ORy2Ry3, —NRy1C(O)Ry2, —NRy1C(O)NRy2Ry3, —NRy1C(O)ORy2Ry3, —NRy1C(O)Ry2ORy3, C(O)NRy1(Ry2Ry3), —C(O)NRy1(Ry2ORy1), —ORy2Ry3, and —ORy2ORy3, wherein each of Ry1 and Ry2 is independently selected from a group consisting of H, oxygen, alkyl, and aryl, and Ry3 is aryl optionally substituted with at least one halogen; Z is —NRz1Rz2, —NRz1Rz3, —ORz1, —ORz1Rz3, —C(O)Rz1Rz3, —C(O)ORz1Rz3, —NRz1C(O)Rz2Rz3, —NRz1C(O)ORz2Rz3, —C(O)NRz1Rz3, or ORz2ORz3, wherein each of Rz1 and Rz2 is independently selected from a group consisting of H, oxygen, alkyl and aryl, and Rz3 is aryl optionally substituted with at least one substituent independently selected from a group consisting of halogen, OH, —RzaCOORzb, —ORzaCOORzb, —RzaSO2Rzb, —RzaSO2NRzbRzcRzd, —RzaC(O)RzbRzc, —RzaC(O)NRzbRzcRzd, —RZaC(O)NRzbSO2Rzc, wherein Rza is nil or alkyl, Rzb is H or alkyl, each of Rzb and Rzc is independently selected from a group consisting of H, OH, alkyl, aryl, alkoxyl, or NRzbRzc is a nitrogen-containing heterocyclic alkyl ring, Rzd is nil or a sulfonyl alkyl group.
Abstract:
Disclosed are an o-phenyl chalcone compounds and preparation methods and uses thereof. The o-phenyl chalcone compounds are capable of inhibiting the aggregation of microtubules in tumor cells and influencing the mitosis of the cells, and has a high antitumor activity. The compounds also have inhibitory activity against proliferation on various tumor cells, such as a human ovary cancer cell A2780, a human colon cancer cell HCT8, a human breast cancer cell MCF7, a human lung cancer cell A549, a human colon cancer cell SW480, a human nasopharyngeal carcinoma cell CNE2, a human liver cancer cell HepG2 and the like at nanomole concentrations.
Abstract:
A data processing form for use with photo-sensing apparatus that detect the presence of indicia at indicia-receiving locations on the form. The form is composed of a sheet of carrier material and plurality of indicia-receiving locations. The indicia-receiving locations are defined by a mutable colored composition including a mutable colorant and an ultraviolet radiation transorber such that the indicia-receiving locations are adapted to become substantially undetectable by photo-sensing apparatus upon irradiating the colored composition with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant. The colored composition may be irradiated with radiation in the ultraviolet region of the ultraviolet spectrum. Also disclosed is a data processing form that includes a plurality of mutable indicia, at least a portion of which are adapted to become substantially undetectable by photo-sensing apparatus upon irradiation with an effective dosage level of ultraviolet radiation such as, for example, ultraviolet radiation. One embodiment of the present invention encompasses a method for improving the readability of a data processing form used in photo-sensing apparatus. Another embodiment of the present invention encompasses a method of modifying indicia on a data processing form used in photo-sensing apparatus.
Abstract:
This invention relates to chalcone derivatives represented by the following formula (1): wherein A represents a phenyl group, a quinolyl group or the like, W represents a vinylene group or the like, and R.sup.1 to R.sup.5 each independently represent a carboxyl, cyano, alkyloxycarbonyl or like group, or salts of the chalcone derivatives, and also to drugs containing them as effective ingredients. These compounds have excellent cys-LT receptor antagonism, and are useful as antiallergic agents or the like.
Abstract:
A light-stable colored composition which includes a colorant and a radiation transorber. The colorant, in the presence of the radiation transorber, is adapted, upon exposure of the transorber to specific, narrow bandwidth radiation, to be mutable. The radiation transorber also imparts light-stability to the colorant so that the colorant does not fade when exposed to sunlight or artificial light.
Abstract:
Aryl-substituted and aryl and (3-oxo-1-propenly)-substituted benzopyran, benzothiopyran, 1,2-dihydroquinoline, and 5,6-dihydronaphthalene derivatives have retinoid negative hormone and/or antagonist-like biological activities. The invented RAR antagonists can be administered to mammals, including humans, for the purpose of preventing or diminishing action of RAR agonists on the bound receptor sites. Specifically, the RAR agonists are administered or coadministered with retinoid drugs to prevent or ameliorate toxicity or side effects caused by retinoids or vitamin A or vitamin A precursors. The retinoid negative hormones can be used to potentiate the activities of other retinoids and nuclear receptor agonists. For example, the retinoid negative hormone called AGN 193109 effectively increased the effectiveness of other retinoids and steroid hormones in in vitro transactivation assays. Additionally, transactivation assays can be used to identify compounds having negative hormone activity. These assays are based on the ability of negative hormones to down-regulate the activity of chimeric retinoid receptors engineered to possess a constitutive transcription activator domain.
Abstract:
A data processing form for use with photo-sensing apparatus that detect the presence of indicia at indicia-receiving locations on the form. The form is composed of a sheet of carrier material and plurality of indicia-receiving locations. The indicia-receiving locations are defined by a mutable colored composition including a mutable colorant and an ultraviolet radiation transorber such that the indicia-receiving locations are adapted to become substantially undetectable by photo-sensing apparatus upon irradiating the colored composition with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant. The colored composition may be irradiated with radiation in the ultraviolet region of the ultraviolet spectrum. Also disclosed is a data processing form that includes a plurality of mutable indicia, at least a portion of which are adapted to become substantially undetectable by photo-sensing apparatus upon irradiation with an effective dosage level of ultraviolet radiation such as, for example, ultraviolet radiation. One embodiment of the present invention encompasses a method for improving the readability of a data processing form used in photo-sensing apparatus. Another embodiment of the present invention encompasses a method of modifying indicia on a data processing form used in photo-sensing apparatus.
Abstract:
A method of mutating a colorant in a composition which includes a colorant and a radiation transorber by irradiating the composition. The colorant, in the presence of the radiation transorber, is adapted, upon exposure of the transorber to specific, narrow bandwidth radiation, to be mutable. The radiation transorber also imparts light-stability to the colorant so that the colorant does not fade when exposed to sunlight or artificial light.
Abstract:
An electrophotographic process wherein an image is formed with toner comprising a mutable colorant and an ultraviolet radiation transorber so that an image formed by the electrophotographic process can be altered in color or erased. The electrophotographic process comprises the steps of creating an image on a photoreceptor surface, applying a toner on the photoreceptor surface to form a toner image which replicates the image, transferring the toner image to a substrate, and fixing the toner image to the substrate. The toner comprises a mutable colorant, an ultraviolet radiation transorber, and a carrier comprising a polymer. The ultraviolet radiation transorber is adapted, upon exposure to ultraviolet radiation, to interact with the mutable colorant to irreversibly mutate the mutable colorant from an initial absorption maximum to a new absorption maximum different from the initial absorption maximum. The electrophotographic process may further comprise exposing the toner image on the substrate to ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant and change the color of the toner image or render the image colorless. The substrate can then be reused to form a second toner image thereon.
Abstract:
Novel diarylacetylenes of the formula I ##STR1## where A, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 have the meanings stated in the description, are useful for the treatment of disorders.