摘要:
A method of coupling an aromatic compound having a two or more fluorosulfonate substituents to an alkyne is useful in the preparation of polyalkynyl-substituted arene compounds.
摘要:
The present disclosure in general relates to a process for reducing impurities, i.e. undesirable components, present in a cashew nut shell liquid (CNSL) using at least one selective nanofiltration membrane. It further provides new product mixtures from natural origin, comprising cardol and cardanol, that could not be obtained with processes of the prior art.
摘要:
The invention relates to the use of substituted 1 -(aryl ethynyl)-, 1 - (heteroaryl ethynyl)-, 1 -(heterocyclyl ethynyl)- and 1 -(cyloalkenyl ethynyl)- bicycloalkanols or salts thereof (I). The groups in general formula (I) correspond to the definitions cited in the description, for increasing the stress tolerance in plants with respect to abiotic stress and/or for increasing plant yield.
摘要:
The invention relates to a compound selected from the group consisting of all stereoisomers and their mixtures of the compounds of general formulas (1)-(4), in which R 1 is a straight-chained, branched or cyclic hydrocarbon group with up to 12 C-atoms and X + is selected from the group consisting of H + , NH 4 + , mono, di or trivalent metal cations, NH 4 + , primary, secondary, tertiary or quaternary organic ammonium ions with up to 48 C-atoms, which can carry even more functional groups, hydrazinium ion (N 2 H 5 + ), hydroxylammonium ion (NH 3 OH + ), guanidinium ion (CN 3 H 6 + ), and organic derivatives of (N 2 H 5 + ), NH 3 OH + , and CN 3 H 6 + , which can carry even more functional groups, and similar. A method is also provided for producing these compounds, comprising the following steps: producing synthetic cannabinoid carboxylic acids in a chemical reaction, or extracting natural cannabinoid carboxylic acids from plant material or cell cultures of Cannabis sativa , and adding a suitable inorganic base, a suitable organic base and/or a suitable inorganic or organic salt in a suitable solvent, to the cannabinoid carboxylic acids or cannabinoid carboxylic acid-rich extracts produced in this manner.
摘要:
The present invention relates to novel compounds corresponding to the general formula (I) below: to compounds containing them, and to their use in pharmaceutical compositions intended for use in human or veterinary medicine, or alternatively in cosmetic compositions.
摘要:
The current invention provides novel retinoid compounds and methods for their synthesis, the use of such compounds for the preparation of medicaments for treating or preventing emphysema, cancer and dermatological disorders, methods for such deseases and pharmaceutical compositions suitable for the treatment or prevention of emphysema, cancer and dermatological disorders.
摘要:
Aryl-substituted and aryl and (3-oxo-1-propenyl)-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.
摘要:
The invention provides a compound of the formula wherein X is S, O, NR' where R' is H or alkyl of 1 to 6 carbons, or X is [C(R 1 ) 2 ] n where R 1 is independently H or alkyl of 1 to 6 carbons, and n is an integer between 0 and 2; R 2 is hydrogen, lower alkyl of 1 to 6 carbons, F, Cl, Br, I, CF 3 , fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons; R 3 is hydrogen, lower alkyl of 1 to 6 carbons or F; m is an integer having the value 0-3; o is an integer having the value 0-3; Y is a phenyl or naphthyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, oxazolyl, imidazolyl and pyrrazolyl, said phenyl and heteroaryl groups being optionally substituted with one or two R 2 groups; A is (CH 2 ) q where q is 0-5, lower branched chain alkyl having 3-6 carbons, cycloalkyl having 3-6 carbons, alkenyl having 2-6 carbons and 1 or 2 double bonds, alkynyl having 2-6 carbons and 1 or 2 triple bonds; B is hydrogen, COOH or a pharmaceutically acceptable salt thereof, COOR 8 , CONR 9 R 10 , -CH 2 OH, CH 2 OR 11 , CH 2 OCOR 11 , CHO, CH(OR 12 ) 2 , CHOR 13 O, -COR 7 , CR 7 (OR 12 ) 2 , CR 7 OR 13 O, or tri-lower alkylsilyl, where R 7 is an alkyl, cycloalkyl or alkenyl group containing 1 to 5 carbons, R 8 is an alkyl group of 1 to 10 carbons or trimethylsilylalkyl where the alkyl group has 1 to 10 carbons, or a cycloalkyl group of 5 to 10 carbons, or R 8 is phenyl or lower alkylphenyl, R 9 and R 10 independently are hydrogen, an alkyl group of 1 to 10 carbons, or a cycloalkyl group of 5-10 carbons, or phenyl or lower alkylphenyl, R 11 is lower alkyl, phenyl or lower alkylphenyl, R 12 is lower alkyl, and R 13 is divalent alkyl radical of 2-5 carbons, and R 14 is (R 15 ) r -phenyl, (R 15 ) r -naphthyl, or (R 15 ) r -heteroaryl where the heteroaryl group has 1 to 3 heteroatoms selected from the group consisting of O, S and N, r is an integer having the values of 0-5, and R 15 is independently H, F, Cl, Br, I, NO 2 , N(R 8 ) 2 , N(R 8 )COR 8 , NR 8 CON(R 8 ) 2 , OH, OCOR 8 , OR 8 , CN, an alkyl group having 1 to 10 carbons, fluoro substituted alkyl group having 1 to 10 carbons, an alkenyl group having 1 to 10 carbons and 1 to 3 double bonds, alkynyl group having 1 to 10 carbons and 1 to 3 triple bonds, or a trialkylsilyl or trialkylsilyloxy group where the alkyl groups independently have 1 to 6 carbons; R 16 is H, lower alkyl of 1 to 6 carbons; R 17 is H, lower alkyl of 1 to 6 carbons, OH or OCOR 11 , and p is zero or 1, with the proviso that when p is 1 then there is no R 17 substituent group, and m is an integer between 0 and 2.
摘要:
Compounds, compositions, and methods for modulating processes mediated by Retinoid X Receptors using retinoid-like compounds which have activity selective for members of the subclass of Retinoid X Receptors (RXRs), in preference to members of the subclass of Retinoic Acid Receptors (RARs). Examples of such compounds are bicyclic benzyl, pyridinyl, thiophene, furanyl, pyrrole, and polyenoic acid derivatives including carbocyclic polyenoic acids. The disclosed methods employ compounds for modulating processes selectively mediated by Retinoid X Receptors.
摘要:
An isocarbacyclin with the α-chain modified with phenylene, cycloalkylene or thiophenediyl. It has the activity of inhibiting DNA synthesis of human smooth muscle cells and is expected to inhibit vascular hypertrophy.