摘要:
The present invention provides a malononitrile compound represented by the formula (I): wherein any one of X1, X2, X3 and X4 is CR100, wherein R100 is a group represented by the formula: the other three of X1, X2, X3 and X4 each represent nitrogen or CR5, provided that 1 to 3 of X1, X2, X3 and X4 represent nitrogen, and Z represents oxygen, sulfur or NR6, which has pest-controlling activity.
摘要:
The present invention relates to processes and reagents for oligonucleotide synthesis and purification. One aspect of the present invention relates to compounds useful for activating phosphoramidites in oligonucleotide synthesis. Another aspect of the present invention relates to a method of preparing oligonucleotides via the phosphoramidite method using an activator of the invention. Another aspect of the present invention relates to sulfur-transfer agents. In a preferred embodiment, the sulfur-transfer agent is a 3-amino-1,2,4-dithiazolidine-5-one. Another aspect of the present invention relates to a method of preparing a phosphorothioate by treating a phosphite with a sulfur-transfer reagent of the invention. In a preferred embodiment, the sulfur-transfer agent is a 3-amino-1,2,4-dithiazolidine-5-one. Another aspect of the present invention relates to compounds that scavenge acrylonitrile produced during the deprotection of phosphate groups bearing ethylnitrile protecting groups. In a preferred embodiment, the acrylonitrile scavenger is a polymer-bound thiol. Another aspect of the present invention relates to agents used to oxidize a phosphite to a phosphate. In a preferred embodiment, the oxidizing agent is sodium chlorite, chloramine, or pyridine-N-oxide. Another aspect of the present invention relates to methods of purifying an oligonucleotide by annealing a first single-stranded oligonucleotide and second single-stranded oligonucleotide to form a double-stranded oligonucleotide; and subjecting the double-stranded oligonucleotide to chromatographic purification. In a preferred embodiment, the chromatographic purification is high-performance liquid chromatography.
摘要:
The present invention is directed to certain novel compounds represented by structural formula I: ##STR1## or a pharmaceutically acceptable salt thereof, wherein R.sup.3, R.sup.6, R.sup.7, R.sup.8, R.sup.11, R.sup.12, R.sup.13, m, n and the dashed lines are defined herein. The invention is also concerned with pharmaceutical formulations comprising these novel compounds as active ingredients and the use of the novel compounds and their formulations in the treatment of certain disorders. The compounds of this invention are tachykinin receptor antagonists and are useful in the treatment of inflammatory diseases, pain or migraine, asthma and emesis.
摘要:
The present invention relates to highly diastereoselective processes for production of cis-nucleosides and nucleoside analogues and derivatives in high optical purity and intermediates useful in those processes.
摘要:
Rolipram-based PDE IV inhibitors containing phenyl- or benzyl-substituted moieties of the formula: ##STR1## wherein X.sub.1 and X.sub.2 may be the same or different and each is O or S;R.sub.1 is selected from the group consisting of hydrogen, saturated or unsaturated straight-chain or branched C.sub.2-12 alkyl groups, cycloalkyl and cycloalkyl-alkyl groups containing from 3 to 10 carbon atoms in the cycloalkyl moiety;R.sub.2 =R.sub.1 or --CH.sub.3 ;R.sub.3 is hydrogen, halogen, or a saturated or unsaturated straight-chain or branched C.sub.1-12 alkyl group, a cycloalkyl or cycloalkyl-alkyl groups containing from 3 to 7 carbon atoms in the cycloalkyl moiety;Z is a linkage selected from --CH.sub.2 CONH-- or --CH.sub.2 NHCO--, andR.sub.4 is a phenyl or benzyl which may be unsubstituted or substituted with one or more halogen atoms, alkyl groups, hydroxyl groups, cyano groups, carboxyl groups, alkoxy groups, alkoxycarbonyl, amido, carboxamido, substituted or unsubstituted amino groups, cycloalkyl and cycloalkyl-alkyl groups containing from 3 to 10 carbon atoms in the cycloalkyl moiety, aryl or aralkyl groups preferably containing from about 6 to about 10 carbon atoms, or heterocyclic groups containing nitrogen, oxygen or sulfur in the ring; the alkyl, alkoxy, cycloalkyl, cycloalkylalkyl, aryl, and aryl-alkyl groups being saturated or unsaturated, unsubstituted or substituted by halogen atoms, hydroxyl groups, cyano groups, carboxyl groups, alkoxy groups, alkoxycarbonyl, carboxamido or substituted or unsubstituted amino groups, or one or more lower alkyl groups having from 1 to 3 carbon atoms;provided that R.sub.4 cannot be substituted with more than one methoxy group. compared to theophylline or rolipram as well as with improved selectivity with regard to PDE III inhibition. Pharmaceutical compositions containing the same and methods of treatment are also disclosed.
摘要:
This invention relates to new ethanolamine derivatives having gut selective sympathomimetic and anti-pollakiuria activities and represented by the general formula [I]: ##STR1## wherein R.sup.1 is aryl or a heterocyclic group, each of which may be substituted with halogen, etc.,R.sup.2 is hydrogen, halogen, nitro, hydroxy, lower alkyl optionally substituted with acyl, lower alkenyl optionally substituted with acyl, lower alkoxy optionally substituted with acyl, or amino optionally substituted with acyl(lower)alkyl,R.sup.3 is hydrogen, an N-protective group, or lower alkyl optionally substituted with lower alkylthio,n is an integer of 0 to 3, anda heavy solid line means a single bond or a double bond,provided that when n is 1, then1) R.sup.1 is a condensed aromatic hydrocarbon group or a heterocyclic group, each of which may be substituted with halogen, etc., and the like,and pharmaceutically acceptable salts thereof to processes for the preparation thereof and to a pharmaceutical composition comprising the same.
摘要:
Nitrogen- and sulfur-containing compositions are prepared by reacting an oil-soluble dispersant with a dimercaptothiadiazole such as 2,5-dimercapto-1,3,4-thiadiazole and subsequently reacting the intermediate thus formed with a carboxylic acid or anhydride containing up to about 10 carbon atoms and having at least one olefinic bond. The preferred carboxylic acid or anhydride is maleic anhydride. The compositions thus obtained are useful in lubricants as dispersants, extreme pressure agents, corrosion inhibitors and inhibitors of copper activity and "lead paint" deposition.
摘要:
The compounds are dithiocarbamates and isothioureas which are histamine H.sub.2 -antagonists. Two compounds of the invention are 2-(5-methyl-4-imidazolylmethylthio)ethyl N-methyldithiocarbamate and S-[2-(5-methyl-4-imidazolylmethylthio)ethyl]-N-cyano-N'-methylisothiourea.
摘要:
The invention relates to novel compounds and also to methods of treating at least one disease, disorder, or condition associated with amyloidosis using such compounds. Amyloidosis refers to a collection of diseases, disorders, and conditions associated with abnormal deposition of A-beta protein.
摘要:
Compounds of formula (I): or pharmaceutically acceptable salts or solvates thereof, and their use as pharmaceuticals, particularly as p38 kinase inhibitors.