摘要:
The invention relates to solvent compositions predominantly comprising at least one oxide of an organic sulfide, more particularly dimethyl sulfoxide, to which is added at least one odour-masking agent comprising at least one compound selected from monoesters, diesters or triesters, alcohols, ketones, aldehydes and terpenes.
摘要:
Catechol compounds of formula I ##STR1## where R.sub.1, R.sub.2, R.sub.3 and X are as described herein are effective Catechol-O-methyltransferase inhibitors.
摘要:
A process for producing a carboxylic acid amide or ester, which comprises reacting an organic chloride having at least one chlorine atom on its ring of a substituted or unsubstituted, aromatic or heterocyclic hydrocarbon with carbon monoxide and an amine or an alcohol in the presence of a base by using as catalysts a palladium compound and a phosphine compound represented by the general formula (V):(R).sub.2 P--X--P(R).sub.2 (V)wherein R is an alkyl group or a substituted or unsubstituted phenyl group, and X is an alkylene group having 1 to 6 carbon atoms ##STR1## or a binaphthyl group.
摘要:
A process for preparing single enantiomers of chiral sulphoxides is provided. The process involves (a) reacting an achiral sulphur-containing, e.g. a disulphide, with a single enantiomer of a chiral template having the formula T--(CO)--CH.sub.2 R.sup.1, wherein T is suitably (eta.sup.5 --C.sub.5 H.sub.5)Fe(CO)(PPh.sub.3)-- (Ph=phenyl) and (b) thereafter sterospecifically oxidizing the sulphur atom with an oxidizing agent. A single enantiomer of the chiral sulphoxide can then be generated by reacting the oxidized product with a carbanion. In a preferred embodiment the reaction mixture is thereafter treated with further achiral sulphide to provide a process which is catalytic on the chiral template.
摘要:
Phenoxyalkylcarboxylic acid derivatives of the following formula, ##STR1## wherein R.sup.1 indicates hydrogen atom, methyl group or ethyl group, m is an integer from 2 to 5, and n is an integer from 3 to 8, X.sup.1 and X.sup.2 each independently represent sulfur atom, oxygen atom, sulfinyl group or sulfonyl group, proviso X.sup.1 and X.sup.2 are not simultaneously oxygen atom; their alkali salts and hydrates thereof are useful as antiallergic agents.
摘要:
2-Substituted-1-naphthols are 5-lipoxygenase inhibitors which make them useful in the treatment of inflammation, obstructive lung diseases and/or psoriasis. Useful 2-substituent groups are alkyls, alkenyls, alkynyls, cycloalkyls, cycloalkenyls, the groups CH.sub.2 --C.tbd.C--(CH.sub.2).sub.m R.sup.5 and CH.dbd.CH--(CH.sub.2).sub.n R.sup.5 (where m is 1-4, n is 0-3 and R.sup.5 includes phenyl, COOR.sup.9, where R.sup.9 is H or alkyl of 1-4 carbons, AR.sup.6 l (where A is a methylene chain and R.sup.6 is a variety of groups including Cl, Br, I, CHO, CN, COOR.sup.9, NH.sub.2, SC(NH)NH.sub.2, phenyl, P(O)(OR.sup.9).sub.2, etc.), and CHR.sup.7 R.sup.21 (where R.sup.7 is a variety of aromatic and heterocyclic groups and R.sup.21 is H, optionally substituted phenyl and a variety of heterocyclic groups).
摘要翻译:2-取代的1-萘酚是5-脂氧合酶抑制剂,其可用于治疗炎症,阻塞性肺疾病和/或牛皮癣。 有用的2-取代基是烷基,烯基,炔基,环烷基,环烯基,基团CH 2 -C 3 CF(CH 2)m R 5和CH = CH-(CH 2)n R 5(其中m是1-4,n是0-3 和R 5是苯基,COOR 9,其中R 9是H或1-4个碳的烷基,AR 6 l(其中A是亚甲基链,R 6是各种基团,包括Cl,Br,I,CHO,CN,COOR9,NH2, SC(NH)NH 2,苯基,P(O)(OR 9)2等)和CHR 7 R 21(其中R 7是各种芳族和杂环基团,R 21是H,任选取代的苯基和各种杂环基团)。
摘要:
Compounds having the formula: ##STR1## are antagonists of leukotrienes of C.sub.4, D.sub.4 and E.sub.4, the slow reaction substance of anaphylaxis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory and cytoprotective agents.
摘要:
p-Oxybenzoic acid compounds of the general formula: ##STR1## wherein R is alkyl having not less than two carbon atoms or aralkyl and Y is sulfur atom or sulfonyl.The compounds exhibit bactericidal activity and are useful as bactericides.
摘要:
An ether derivative compound of the formula: ##STR1## wherein R.sup.1 is hydrogen, chloro, methyl or (C.sub.1 -C.sub.3)-alkoxy, R.sup.2 is (C.sub.1 -C.sub.6)-alkyl, R.sup.3 is hydrogen, chloro, bromo, fluoro, --CF.sub.3, nitro, (C.sub.1 -C.sub.4)-alkyl, methoxy, phenoxy or (C.sub.1 -C.sub.3)-alkylthio, R.sup.4 is hydrogen, chloro or methyl, Y is oxygen, sulfur, sulfinyl, sulfonyl, or imino, x is 0, 1 or 2, y is 0 or 1, a is 0 or 1, b is an integer of 0 to 6, c is 0 or 1, d is 0, 1 or 2, e is 0 or 1, except that all of a, b and c are zero.
摘要:
A process is disclosed for preparing fluoroaromatic compounds (such as fluoronitrobenzene compounds) by reaction of corresponding chloroaromatic compounds (such as chloronitrobenzene compounds) with alkali metal fluoride salts in the presence of alkyldiorganoaminopyridinium salts as phase transfer catalysts. A secondary carbon atom is directly attached to the alkyl carbon atom which is directly attached to the ring nitrogen atom. A preferred catalyst is N-(2-ethylhexyl)-4-(N',N'- dimethylamino)pyridinium chloride.