摘要:
This invention relates to imidazole derivatives having hypocholesterolemic and hypolipidemic activity, to processes for their preparation, to pharmaceutical compositions containing them and to their use in medicine, particularly in the treatment and/or prevention of atherosclerosis and coronary heart disease.
摘要:
Compounds of formula ##STR1## wherein R.sup.1 or R.sup.2 represents a C.sub.1-6 alkyl group optionally substituted by one to three halogen atoms and the other represents a phenyl or pyridyl ring or N-oxide thereof optionally substituted by one or more substituents selected from halogen atoms and hydroxyl, C.sub.1-3 alkyl, C.sub.1-3 alkoxy and trifluoromethyl groups; wherein R.sup.3 represents a phenyl or pyridyl ring or N-oxide thereof optionally substituted by one or more substituents selected from halogen atoms and hydroxyl, C.sub.1-3 alkyl, C.sub.1-3 alkoxy and trifluoromethyl groups with the proviso that only one of the groups R.sup.1, R.sup.2 or R.sup.3 represents an optionally substituted pyridyl ring; X represents --CH.dbd.CH--; and Z represents ##STR2## wherein R.sup.4 represents a hydrogen atom, a carboxyl protecting group or a cation; and R.sup.5 represents a hydrogen atom or a C.sub.1-3 alkyl group; a solvate thereof, or acid addition salts of compounds wherein R.sup.4 represents a hydrogen atom or a carboxyl protecting group; for use in the treatment and/or prevention of diseases associated with hypercholesteroloma and hyperlipoproteinemia.
摘要:
Certain novel imidazole derivatives N-substituted by a vinyl group itself carrying a mevalonic acid derivative or corresponding lactone are inhibitors of HMG-CoA reductase and are useful for lowering blood plasma cholesterol levels.The compounds are of general formula (I): ##STR1## in which one of the groups R.sup.1 and R.sup.2 represents a C.sub.1-6 alkyl group optionally substituted by one to three halogen atoms and the other represents a phenyl ring optionally substituted by one to five substituents selected from halogen atoms and hydroxyl, C.sub.1-3 alkyl, C.sub.1-3 alkoxy, S(O).sub.n C.sub.1-3 alkyl, (CH.sub.2).sub.m NR.sup.a R.sup.b, (CH.sub.2).sub.m NR.sup.c COR.sup.d and trifluoromethyl groups;R.sup.3 represents a phenyl ring optionally substituted by one to five substituents selected from halogen atoms and hydroxyl, C.sub.1-3 alkyl, C.sub.1-3 alkoxy, S(O).sub.n C.sub.1-3 alkyl, (CH.sub.2).sub.m NR.sup.a R.sup.b, (CH.sub.2).sub.m NR.sup.c COR.sup.d and trifluoromethyl groups; with the proviso that at least one of the groups R.sup.1, R.sup.2 and R.sup.3 contains an S(O).sub.n C.sub.1-3 alkyl, (CH.sub.2).sub.m NR.sup.a R.sup.b or (CH.sub.2).sub.m NR.sup.c COR.sup.d substituent;X represents --CH.dbd.CH--;Z represents ##STR2## and physiologically acceptable solvates, physiologically acceptable acid addition salts thereof when R.sup.4 represents hydrogen or a physiologically acceptable and metabolically labile carboxyl protecting group when Z is (a), and quaternary ammonium derivatives thereof.
摘要:
Compounds are described of the formula ##STR1## wherein R.sub.1 represents a hydrogen atom, a hydroxyl group or a group selected from --OCOCH.dbd.CHCH(CH.sub.3)(CH.sub.2).sub.3 CH.sub.3, --OCOCH.dbd.CHC(CH.sub.3).dbd.CHCH(CH.sub.3)--CH.sub.2 CH.sub.3, or --OCO--X--CH.sub.2 CH(CH.sub.3)CH.sub.2 CH.sub.3 [where X is --CH.dbd.CHCH(CH.sub.3)--, --CH.sub.2 CH(OH)CH(CH.sub.3)--, --CH.dbd.CHC(OH)(CH.sub.3)--, --CH.sub.2 CH(OH)CH.sub.2 -- or --CH.sub.2 CH.sub.2 CH(CH.sub.3)--)];R.sub.2 represents a hydrogen atom or a hydroxyl group;R.sub.3 represents a group selected from --C(.dbd.CH.sub.2)CH(OR.sub.7)CH(CH.sub.3)CH.sub.2 Ph (where R.sub.7 is a hydrogen atom or an acetyl group), --C(CH.sub.3).dbd.CHCH(CH.sub.2 R.sub.8)CH.sub.2 Ph (where R.sub.8 is a hydrogen or a hydroxyl group), --C(CH.sub.2 OH).dbd.CHCH(CH.sub.3)CH.sub.2 Ph, --C(.dbd.CH.sub.2)CH(OH)CH(CH.sub.2 OH)CH.sub.2 Ph, --C(.dbd.CH.sub.2)CH(NHCOCH.sub.3)CH(CH.sub.3)CH.sub.2 Ph, --C(CH.sub.2 NHCOCH.sub.3).dbd.CHCH(CH.sub.3)CH.sub.2 Ph or ##STR2## R.sub.4, R.sub.5 and R.sub.6 may each independently represent a hydrogen atom or a methyl group and salts thereof; with the proviso that when either of R.sub.1 and R.sub.2 represents a hydrogen atom R.sub.3 is a group selected from --C(.dbd.CH.sub.2)CH(OR.sub.7)CH(CH.sub.3)CH.sub.2 Ph and --C(CH.sub.3).dbd.CHCH(CH.sub.3)CH.sub.2 Ph and when both of R.sub.1 and R.sub.2 represent hydrogen atoms R.sub.3 represents --C(CH.sub.3).dbd.CHCH(CH.sub.3)CH.sub.2 Ph.These compounds inhibit the enzyme squalene synthase and/or are intermediates for the preparation of compounds which inhibit the enzyme squalene synthase. Compounds of the invention may be formulated for use in a variety of conditions where a lowering of the level of blood plasma cholesterol in animals would be beneficial and for use in combating fungal infections in animals.
摘要:
2-Vinylclavem compounds are disclosed which have been found of value in the synthesis of thio-derivatives of clavulanic acid which possess antibiotic and .beta.-lactamase inhibitory activity. Methods for preparing the vinylclavem compounds are disclosed and processes for preparing the thio-derivatives are given.
摘要:
Bolt-on clamp extrusions for fastening a track to support base extrusion for providing customers with a simple-to-assemble, customizable, reconfigurable, and user-friendly solution for reliable linear motion track assembly. A back-to-back track configuration provides a low-profile track assembly. Custom made base extrusions include deformable fingers disposed in the slot to ensure proper fit despite a variance in track size.
摘要:
A valve having a valve body with an elongated opening therein and having a first end and a second end. A valve member is slidably disposed in the elongated opening. First, second and third ports are in fluid communication with the opening in the valve body at times. One of the first, second and third ports have a supply of fluid under pressure connected thereto. A first passage is disposed in the valve body and leads from the first port to the second end thereof. A second passage is disposed in the valve body and leads from the second port to the second end thereof. A third passage is disposed in the valve body and leads from the third port to the second end thereof. An actuator body is adapted to be connected to the valve body and has a cavity therein. The actuator body has a first end adjacent to the second end of the valve body. An actuator is disposed in the cavity. The actuator has a first side and a second side and is moveable between a first and a second position thereof for moving the valve member. A fluid passageway is disposed in the actuator body and leads from the first end of the actuator body to a position on the second side of said actuator and is adapted to be selectively connected in one of a first, second and third configuration at any one time to one of the first, second and third passages and is adapted to be connected to any one of the first, second and third passages of a user's choosing.
摘要:
A system for securing a linear motion guide track (1010) to a support extrusion (1030) comprises an elongated wedge (1040) having a protrusion configured for insertion in a slit in one side of the well of the support extrusion for positioning the wedge in the well, the wedge having deformable teeth on a side opposite the protrusion such that insertion of the guide track in the well deforms the teeth of the wedge thereby securely holding the guide track in the support extrusion.
摘要:
An assembly for coupling a track with a base extrusion via a support extrusion and a wedge assembly. A double-edged support extrusion for coupling a track with a guide wheel via a wedge assembly according to some embodiments of the invention. Methods for assembling an assembly for coupling a track with a base extrusion via a support extrusion and a wedge assembly and a double-edged support extrusion for coupling a track with a guide wheel via a wedge assembly.