摘要:
A class of 2,3-substituted cyclopenta-2,4-dienyl compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula II: ##STR1## wherein each of R.sup.1 and R.sup.2 is independently selected from hydrido, lower alkyl, lower hydroxyalkyl, halo, lower haloalkyl, lower alkoxycarbonyl and carboxyl; and wherein each of R.sup.3 through R.sup.12 is independently selected from hydrido, halo, lower alkyl, lower alkylthio, cyano, hydroxyl, mercapto, lower haloalkyl, lower haloalkoxy, lower alkoxy, lower hydroxyalkyl, lower alkoxyalkyl, lower alkylsulfonyl, lower haloalkylsulfonyl and sulfamyl; provided R.sup.5 and R.sup.10 are not both hydrido or methoxy; or a pharmaceutically suitable salt or prodrug thereof.
摘要翻译:描述了一类2,3-取代的环戊二烯-2,4-二烯基化合物用于治疗炎症和炎症相关疾病。 特别感兴趣的化合物由式II定义:倾向选自氢化,低级烷基,低级羟烷基,卤素,低级卤代烷基,低级烷氧基羰基和羧基; R 3至R 12各自独立地选自氢,卤素,低级烷基,低级烷硫基,氰基,羟基,巯基,低级卤代烷基,低级卤代烷氧基,低级烷氧基,低级羟烷基,低级烷氧基烷基,低级烷基磺酰基,低级卤代烷基磺酰基和氨磺酰基。 条件是R 5和R 10不同时为氢或甲氧基; 或其药学上合适的盐或前药。
摘要:
Novel diamines 1,2-bis(3-aminophenyl)perfluorocyclobutane 1,2-bis(3 or 4-aminophenyl)perfluorocyclobutene, cyclopenetene; and cyclohexene and the correspnding dintro compounds, from which they are made.
摘要:
A process which comprises reacting an aliphatic or cycloaliphatic olefin, having 4 to 16 carbon atoms in its main chain and a non-terminal double bond, with a carboxylic acid, in the presence of hydrogen peroxide and a catalyst consisting of a palladium salt or complex.
摘要:
Alkoxynaphthalenecarboxylic acid is produced by a process comprising the addition of 1,3-butadiene to alkoxyalkylbenzene to yield an adduct. The adduct is cyclized in the presence of an acid catalyst to alkoxyalkyltetralin. The tetralin derivative is then dehydrogenated to produce aloxyalkylnaphthalene, which is oxidized to alkoxynaphthalenecarboxylic acid.
摘要:
The invention relates to a process for preparing biscyclopentadienyl compounds of the general formula(CpR.sub.a).sub.2 --Qby reaction of CpR.sub.a, in a first step, in accordance with the general equation2CpR.sub.a +(R.sup.3 R.sup.4).sub.c Mg.fwdarw.(CpR.sub.a).sub.2 Mg+cR.sup.3 H+cR.sup.4 Hand further reaction in accordance with the general equation(CpR.sub.a).sub.2 Mg+XQX.sup.1 .fwdarw.(CpR.sub.a).sub.2 Q+MgXX.sup.1
摘要:
Benzofluorenyl-containing metallocenes are disclosed along with methods for making the metallocenes. Also disclosed are methods for using the metallocenes as polymerization catalysts. In addition, polymers resulting from such polymerizations are disclosed.
摘要:
A class of halogenated phenylacetonitrile alkylaminoalkylphenyl compounds having immunosuppressive properties is described. Compounds of this class would be useful in reducing recipient rejection of transplanted organs and for treatment of autoimmune or inflammatory diseases. Compounds of particular interest are of the formula ##STR1## wherein m is a number selected from three to five, inclusive; wherein n one or two; wherein R.sup.1 is selected from methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, tert-butyl, iso-butyl, n-pentyl, isopentyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclopropylmethyl, cyclobutylmethyl, cyclopentylmethyl, cyclohexylmethyl, benzyl and phenethyl; wherein R.sup.2 is selected from methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, tert-butyl, iso-butyl, n-pentyl, isopentyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclopropylmethyl, cyclobutylmethyl, cyclopentylmethyl, cyclohexylmethyl, benzyl and phenethyl; wherein each of R.sup.3 through R.sup.7 is selected from hydrido, fluoro, chloro, bromo, azide, trifluoromethyl, difluorochloromethyl, 1,1-difluoroethyl, 2,2,2-trifluoroethyl, perfluoroethyl and 2,2,2,3-tetrafluoropropyl; with the proviso that at least one of R.sup.3 through R.sup.7 is selected from fluoro and trifluoromethyl; or a tautomer thereof or a pharmaceutically-acceptable salt thereof.
摘要:
Alkyl substituted cyclopentadienes are prepared by reacting cyclopentenones with a Grignard reagent followed by the acidification and dehydration of the resulting tertiary alcohol with an organic carboxylic acid.
摘要:
In accordance with the present invention there is provided a process for preparing a cyclopentadienyl-type ligand, the process comprises (1) reacting an alkali metal salt of a cyclopentadienyl-type compound and an aminofulvene compound to form a monoanion, (2) reacting the monoanion and a reducing agent to form a dianion, and (3) reacting the dianion and water to produce the cyclopentadienyl-type ligand. Another aspect of the present invention includes a process for preparing a metallocene compound comprising reacting the dianion of step (2) and a transition metal-containing compound to form the metallocene compound. Another aspect of the present invention includes a process for preparing a metallocene compound comprising reacting the ligand of step (3) and an alkali metal compound to form a dianion and then reacting the dianion with a transition metal-containing compound to form the metallocene compound.
摘要:
A composition is provided comprising a metallocene having the formula of: ##STR1## wherein each Z can be the same or different hydrocarbyl radical selected from the group consisting of cyclopentadienyl, indenyl, tetrahydroindenyl, fluorenyl, and mixtures thereof; each X can be the same or different and is selected from the group consisting of hydrogen, fluorine, chlorine, bromine, iodine, R, OR, NR.sub.2, PR.sub.2, or OQ, or mixtures thereof wherein the R is a C.sub.1 -C.sub.20 hydrocarbyl radical and Q is an inorganic moiety selected from the group consisting of silica, alumina, clay, phosphated alumina, and mixtures thereof; each Y can be the same or different and is an alkyl group, hydrogen, fluorine, chlorine, bromine, iodine, or mixtures thereof; E is selected from C, Sn, Si, Ge, B, Al, N, or P; M is a metal selected from Ti, Zr, Hf, Sc, Y, V, or La; m is a number sufficient to fill out the valences of metal M; and n is 1 or 2. Also provided is a process for preparing the metallocene by contacting a hydrocarbon having an acidic, replaceable hydrogen with an organolithium and an organohalosilane to prepare a ligand which is then contacted with an organo alkali metal compound to form a bridged ligand followed by contacting the bridged ligand with an organolithium and a metal halide. The composition is useful for olefin polymerization, hydrogenation, alkene epoxidation, alkene isomerization, and ketone reduction.