363 results about "Benzopyran" patented technology

Compounds useful as inhibitors of PDE4 in the treatment of diseases regulated by the activation and degranulation of eosinophils, especially asthma, chronic bronchitis, and chronic obstructuive pulmonary disease, of the formula: wherein j is 0 or 1, k is 0 or 1, m is 0, 1, or 2; n is 1 or 2; A is selected from the partial Formulas: where q is 1, 2, or 3, W3 is -O-; -N(R9)-; or -OC(=O)-; R7 is selected from -H; -(C1-C6) alkyl, -(C2-C6) alkenyl, or -(C2-C6) alkynyl substituted by 0 to 3 substituents R10; -(CH2)u-(C3-C7) cycloalkyl where u is 0, 1 or 2, substituted by 0 to 3 R10; and phenyl or benzyl substituted by 0 to 3 R14; R8 is tetrazol-5-yl; 1,2,4-triazol-3-yl; 1,2,4-triazol-3-on-5-yl; 1,2,3-triazol-5-yl; imidazol-2-yl; imidazol-4-yl; imidazolidin-2-on-4-yl; 1,3,4-oxadiazolyl; 1,3,4-oxadiazol-2-on-5-yl; 1,2,4-oxadiazol-3-yl; 1,2,4-oxadiazol-5-on-3-yl; 1,2,4-oxadiazol-5-yl; 1,2,4-oxadiazol-3-on-5-yl; 1,2,5-thiadiazolyl; 1,3,4-thiadiazolyl; morpholinyl; parathiazinyl; oxazolyl; isoxazolyl; thiazolyl; isothiazolyl; pyrrolyl; pyrazolyl; succinimidyl; glutarimidyl; pyrrolidonyl; 2-piperidonyl; 2-pyridonyl; 4-pyridonyl; pyridazin-3-onyl; pyridyl; pyrimidinyl; pyrazinyl; pyridazinyl; indolyl; indolinyl; isoindolinyl; benzo[b]furanyl; 2,3-dihydrobenzofuranyl; 1,3-dihydroisobenzofuranyl; 2H-1-benzopyranyl; 2-H-chromenyl; chromanyl; benzothienyl; 1H-indazolyl; benzimidazolyl; benzoxazolyl; benzisoxazolyl; benzothiazolyl; benzotriazolyl; benzotriazinyl; phthalazinyl; 1,8-naphthyridinyl; quinolinyl; isoquinolinyl; quinazolinyl; quinoxalinyl; pyrazolo[3,4-d]pyrimidinyl; pyrimido[4,5-d]pyrimidinyl; imidazo[1,2-a]pyridinyl; pyridopyridinyl; pteridinyl; or 1H-purinyl; or A is selected from phosphorous and sulfur acid groups; W is -O-; -S(=O)t-, where t is 0, 1, or 2; or -N(R3)-; Y is =C(R1a)-, or -[N<custom-character file="US20020111495A1-20020815-P00900.TIF" wi="20" he="20" id="custom-character-00001"/>(O)k] where k is 0 or 1; R4, R5 and R6 are (1) -H; provided that R5 and R6 are not both -H at the same time, -F; -Cl; -(C2-C4) alkynyl; -R16; -OR16; -S(=O)pR16; -C(=O)R16, -C(=O)OR16, -C(=O)OR<highlight><sup

Certain benzopyran antiestrogens are disclosed for treating estrogen sensitive diseases such as breast cancer. Prodrug forms provide ease of manufacturing, good shelf life, and bioavailability, and preferred stereoisomers are shown to be more effective than racemic mixtures.

Methods for protection of a human from SVFS comprise the administration of a flavonoid compound of the basic structures 2-phenyl-4H-1-benzopyran or 2-phenyl-4-keto-1-benzopyran or glycosides thereof, alone or, optionally, together with one or more of an olive kernel extract, a non-bovine sulfated proteoglycan, bitter willow extract, a D-hexosamine sulfate, S-adenosylmethionine, folic acid, vitamin B12 and a serotonin inhibitor. Such treatment prevents, reduces or eliminates SVFS in patients receiving as much as 300-3000 mg/day of niacin therapeutically, whether administered prior to, or along with, an anti-SVFS composition.

The present invention is directed to novel benzopyran derivatives, pharmaceutical compositions containing them and their use in the treatment of disorders related to potassium channel.

This invention provides encapsulated type fluorescent retroreflective sheeting which is excellent in appearance and weatherability, and which comprises a surface-protective layer disposed on the side on which light is to strike, a binder layer connected to the surface-protective layer through network bonding parts, an air layer which is sealed-up by the network bonding parts between the surface-protective layer and the binder layer, and a retroreflective element layer disposed between the surface-protective layer and the air layer, or between the binder layer and the air layer, wherein at least one layer located on the light-incident side of sealed-up air layer contains at least one fluorescent dye selected from the group consisting of benzimidazole coumarin type-fluorescent dyes of formula (1) as follows: and benzopyran type-fluorescent dyes of formula (2) as follows:

The invention concerns novel 6- or 7-substituted derivatives of esculetin (6,7-dihydroxy-2H-1-benzopyran-2-one), their synthesis, and their application as substrates for the detection of micro-organisms in samples where a derivative is enzymatically cleaved to release a colored or fluorogenic marker which has a low tendency to diffuse through agar or other aqueous environments.

The invention relates to an isoflavone compound, its preparation method, and its application in the preparation of antiviral or antitumor drugs, and concretely relates to a compound with a structural formula represented by formula (I). In the formula (I), R1 is hydrogen or C1-6 alkyl; X is -O-, -NH-, -CH=CH-, or ethinyl, or R2 is directly connected with benzopyran; R2 is selected from substituted or unsubstituted phenyl, substituted or unsubstituted heteroaryl, C1-16 alkyl, C1-16 alkyloxy, C1-16 alkyloxycarbonyl, or substituted or unsubstituted benzoyloxy; the heteroaryl is selected from groups derived from a five or six-membered heterocycle or a fused heterocycle containing one or two hetero atoms of N, O or S, and is selected but not limited to pyridyl, benzopyridyl, or groups derived from phenoxathiin, thiophene, oxazole and benzopyridine; and above substituent is selected from halogen, cyan, nitro, hydroxy, amino, C1-6 monosubstituted or disubstituted amino, C1-16 alkyl, halogenated C1-6 alkyl, C2-6 alkenyl, C6-12 arylalkenyl, C1-16 alkyloxy, C1-16 carboxyl, C1-16 alkyloxycarbonyl, C1-16 alkylcarbonyl, and substituted or unsubstituted phenoxyl. The invention also provides the preparation of the compound.

In order to promote solubilization or suspension of 4-oxo-8-[4-(4-phenylbutoxy)benzoylamino]-2-(tetrazol-5-yl)-4H-1-benzopyran or its hydrate (pranlukast) in water, at least one component selected from surfactants, water-soluble cellulose derivatives and water-soluble vinyl polymers is formulated together with pranlukast. Thus, it is possible to provide an aqueous liquid pharmaceutical composition containing higher concentration of pranlukast and having good properties.

The invention discloses an amido benzopyran cyanine fluorochrome and a probe as well as a synthetic method and application thereof. The fluorochrome is any one kind in structural formulas I-II as shown in the description. According to near infrared fluorochromes I and II with an amido benzopyran cyanine structure provided by the invention, the fluorescence quantum yield is high, the light stability is good, the fluorescence-emission spectrum ranges from 650nm to 900nm and belongs to near infrared spectrum areas, the fluorescence imaging analysis in a living body level can be realized, meanwhile, the penetrating power of biological tissue samples is enhanced, the light damage is reduced, the fluorescence of biomolecules per se is relatively weak, and the biological system can be prevented from self-emitting fluorescent interference to obtain a relatively high signal-to-noise ratio, so that the sensitivity is improved.

The present invention relates to substituted benzopyran derivatives, stereoisomers, and pharmaceutical acceptable salts thereof and processes for the preparation of the same. The compounds of the present invention are useful as Estrogen Receptor ? agonists. Such agonists are useful for the treating Estrogen Receptor ? mediated diseases such as prostate cancer or BPH.

The invention discloses a preparation method of a chiral spiro naphthoquinone benzopyran hydroxyindole compound. The method comprises the following specific steps: reacting the condensation product of an isatin compound and propane dinitrile and a 2-hydroxyl-1,4-naphthoquinone compound in a solvent under the catalysis of quinine thiourea dihydride, thereby obtaining a product. According to the method, raw materials are simple and easily available, the reaction condition is mild, the post-treatment is simple and convenient, the applicative substrates are wide, the enantioselectivity is high, and the yield can reach 99%; therefore, the method is a novel method capable of efficiently synthesizing the chiral spiro naphthoquinone benzopyran hydroxyindole compound having important medicinal value and asymmetric synthesis value. The compound prepared by the method can be used for preparing intermediates of chiral drugs and has wide physiological and pharmacological activities.

A process for preparing 3-(formamide)-7-(methylsulfonylamine)-6-(phenoxy) -4H-1-(benzopyran)-4-one as an anti-inflammatory from 3-phenoxy-4-methylsulfonylamine-6- methoxyacetophenone includes demethylation, cyclization, catalytic hydrogenation, bromination, vinylog and amination.

The invention provides the method for synthesizing destination substance of (+-)-6-fluoine-3,4-dihydrogen-2H-1-benzopyrans-2-carboxylic acid through two paths, the (+-)-6-fluoine-3,4-dihydrogen-2H-1-benzopyrans-2-carboxylic acid and C1-C10 alcohols are subject to esterification reaction so as to synthesize the corresponding racemic ester. Then chemical dismantling is conducted to (+-)-6-fluoine-3,4-dihydrogen-2H-1-benzopyrans-2-carboxylic acid, in order to obtain prepare optical purity of (R)-(-)-6-fluoine-3,4-dihydrogen-2H-1-benzopyrans-2-carboxylic acid and (S)-(+)-6-fluoine-3,4-dihydrogen-2H-1-benzopyrans-2-carboxylic acid.

A class of benzopyrans, benzothiopyrans, dihydroquinolines, dihydronaphthalenes, and analogs thereof, is described for use in treating cyclooxygenase-2 mediated disorders. Compounds of particular interest are defined by Formula I′

wherein X, A¹, A², A³, A⁴, R, R″, R¹ and R² are as described in the specification.

Substituted and unsubstituted flavone or isoflavone glycoside derivatives of the formula [A¹-C(═O)O]_m—[X—O-Z]—[O—C(═O)-A²]_n, wherein [X—O-Z] represents a flavone or isoflavone glycoside structure, particularly a naringin residue, X is a flavone or isoflavone corresponding to formula (IIa) or formula (IIb):

wherein the flavone or isoflavone residue is substituted one or more times and/or reduced one or more times; Z represents a mono-, di- or polysaccharide, which is acetally-bound at the benzopyran group to X and ester-substituted by —O—C(═O)-A²; [A¹-C(═O)] is an acyl group on the flavone or isoflavone; A¹ and A² independently, represent a polyunsaturated C_15-26 alkenyl group containing at least four isolated and/or at least two conjugated double bonds, or an arylaliphatic radical with 1-to-4 methylene groups between the ester group and the aromatic ring; [C(═O)A²] is an acyl group; n is an integer other than 0; m is an integer, including 0; and R1, R2 and R are hydroxyl groups or hydrogen atoms.

The invention discloses a synthetic method of a benzopyran chiral compound. The method comprises the following steps: a compound with the structural formula I and a compound with the structural formula II carry out the condensation reaction to generate a compound with the structural formula III, and the compound with the structural formula III is oxidized to obtain the benzopyran chiral compound; the chemical additive adopts a benzoic acid or a substituted benzoic acid compound; and the chiral catalyst is a diphenyl prolinol ester compound or dinaphthyl prolinol ester compound. The synthetic method has the advantages that under the mild condition, relatively cheap raw materials are used, the benzopyran chiral compound derivate is synthesized with high yield, and the derivate is high in optical purity, accessible in raw material, and beneficial for large-scale production and application.

The present invention provides a negative photosensitive resin composition comprising (A) a photocurable resin having a photosensitive group or groups crosslinkable by light irradiation, (B) a photoacid generator and (C) a photosensitizer which is a benzopyran condensed ring compound capable of increasing photosensitivity to visible light with a wavelength of 480 nm or more,

• • a negative photosensitive dry film prepared by applying the photosensitive resin composition to a surface of support film, followed by drying, to form a photosensitive resin layer, and
  • a method of forming a pattern using the resin composition or the dry film.

The invention relates to a solid-phase synthesis method of coumarin and an analogue (I) thereof and belongs to the field of organic chemistry. The method comprises the following steps: 1) taking 1% of cross-linked polystyrene resin as a carrier to prepare a polystyrene-supported seleno-succimide reagent (III); 2) using the III to induce phenyl acrylate (V) to perform intramolecular cyclization under the catalysis of trimethylsilyl trifluoromethanesulfonate so as to form 3-polystyrene-supported seleno-3,4-dihydro-benzopyran-2-ketone (VI); and 3) performing oxidation elimination on the VI via an oxidant so as to directly get the coumarin (I) without further separation. When the phenyl acrylate (V) is replaced by N-phenyl acrylamide, the analogue of the coumarin, namely a 2-quinolone compound, can be prepared through the same steps. The solid-phase synthesis method disclosed by the invention has the advantages of easily available raw materials, good product yield, high purity, simplicityand convenience in operation, simple post-treatment and great industrial application prospects.

The invention provides a flavonoid with agricultural bacteriostatic activity and belongs to the technical field of pesticides. The compound has the following structural formula. The International Union of Pure and Applied Chemistry (IUPAC) chemical name of the compound is E-3-(3-(3,7-dimethyl-2,6-dialkylene)-4-hydroxyphenyl)-5,7-dihydroxyl-4H-benzopyran-4-ketone. The compound has high inhabitation effect on oomycetes selectively and can be processed into a pesticide preparation for preventing and controlling oomycete diseases.

A class of benzopyran, derivatives is described for use in treating cyclooxygenase-2 mediated disorders. Compounds of particular interest are defined by Formula I′

wherein X, A¹, A², A³, A⁴, R, R″, R¹ and R² are as described in the specification.