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US 5,491,167 AGranted
Hexahydronaphthalene ester derivatives, their preparation and their therapeutic uses
AssigneeSankyo Company, Limited
InventorsSadao Ishihara, Hiroshi Kogen, Teiichiro Koga, Eiichi Kitazawa, Nobufusa Serizawa
Life of this patent
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Abstract
Compounds of formula (I): ##STR1## and their salts and esters have the ability to inhibit the synthesis of cholesterol, and can thus be used for the treatment and prophylaxis of hypercholesterolemia and of various cardiac disorders.
Claims87
A compound of formula (I):
- ##STR18## wherein R.sup.1 represents a group of formula (II):
- ##STR19## R.sup.2 represents a hydrogen atom or a group of formula --OR.sup.3 ;
- R.sup.3, R.sup.3a and R.sup.3b are independently selected from the group consisting of hydrogen atoms, hydroxy-protecting groups, alkyl groups having from 1 to 6 carbon atoms, alkanesulfonyl groups having from 1 to 6 carbon atoms, halogenated alkanesulfonyl groups having from 1 to 6 carbon atoms and arylsulfonyl groups, in which the aryl part is an aromatic hydrocarbon ring which has from 6 to 14 ring carbon atoms and is unsubstituted or is substituted by at least one substituent selected from the group consisting of substituents .alpha., defined below;
- R.sup.4 represents a hydrogen atom or a carboxy-protecting group;
- R.sup.5 represents an aryl group having from 6 to 14 ring carbon atoms;
- an aryl group having from 6 to 14 ring carbon atoms and substituted by at least one substituent selected from the group consisting of substituents .alpha., defined below;
- an aralkyl group in which the or each aryl portion has from 6 to 14 ring carbon atoms, and the alkyl portion has from 1 to 6 carbon atoms;
- or an aralkyl group, in which the or each aryl portion has from 6 to 14 ring carbon atoms, and the alkyl portion has from 1 to 6 carbon atoms, substituted on the ring by at least one substituent selected from the group consisting of substituents .alpha., defined below;
- and
- W represents an alkylene group having from 1 to 6 carbon atoms, or an alkylene group having from 1 to 6 carbon atoms and substituted by at least one substituent selected from the group consisting of substituents .beta., defined below;
- said substituents .alpha. are selected from the group consisting of alkyl groups having from 1 to 6 carbon atoms;
- said substituents .beta. are selected from the group consisting of alkyl groups having from 1 to 6 carbon atoms;
- wherein said hydroxy protecting group is selected from the group consisting of:
- methoxymethyl, ethoxymethyl, propoxymethyl, isopropoxymethyl, butoxymethyl, t-butoxymethyl, 2-methoxyethoxymethyl, 2,2,2-trichloroethoxymethyl, bis(2-chloroethoxy)methyl, 1-ethoxyethyl, 1-methyl-1-methoxyethyl, 1-isopropoxyethyl, 2,2,2-trichloroethyl, 2-(phenylselenyl)ethyl, acetoxymethyl, dimethylaminoacetoxy methyl, propionyloxymethyl, butyryloxymethyl, isobutyryloxymethyl, pivaloyloxymethyl, 1-pivaloyloxyethyl, 1-acetoxyethyl, 1-isobutyryloxyethyl, 1-pivaloyloxypropyl, 2-methyl-1-pivaloyloxypropyl, 2-pivaloyloxypropyl, 1-isobutyryloxyethyl, 1-isobutyryloxypropyl, 1-acetoxypropyl, 1-acetoxy-2-methylpropyl, 1-propionyloxyethyl, 1-propionyloxypropyl, 2-acetoxypropyl, 1-butyryloxyethyl, 1-(alkoxycarbonyloxy)ethyl, methoxycarbonyloxymethyl, ethoxycarbonyloxymethyl, propoxycarbonyloxymethyl, isopropoxycarbonyloxymethyl, butoxycarbonyloxymethyl, isobutoxycarbonyloxy methyl, 1-methoxycarbonyloxyethyl, 1-ethoxy carbonyloxyethyl, 1-propoxycarbonyloxyethyl, 1-isopropoxycarbonyloxyethyl, 1-butoxycarbonyloxyethyl, 1-isobutoxycarbonyloxyethyl, 1-sec-butoxycarbonyloxyethyl, 1-t-butoxycarbonyloxyethyl, 1-(1-ethylpropoxycarbonyloxy)ethyl, 1-(1,1-dipropylbutoxycarbonyloxy)ethyl, 2-methyl-1-(isopropoxycarbonyloxy) propyl, 2-(isopropoxycarbonyloxy)propyl, isopropoxycarbonyloxymethyl, t-butoxycarbonyloxymethyl, methoxycarbonyloxymethyl, ethoxycarbonyloxymethyl, cyclohexyloxycarbonyloxymethyl, 1-methylcyclohexylcarbonyloxymethyl, 1-methylcyclohexyloxycarbonyloxymethyl, cyclopentyloxycarbonyloxymethyl, cyclopentylcarbonyloxymethyl, 1-cyclohexyloxycarbonyloxyethyl, 1-cyclohexylcarbonyloxyethyl, 1-cyclopentyloxycarbonyloxyethyl, 1-cyclopentylcarbonyloxyethyl, 1-cycloheptyloxycarbonyloxyethyl, 1-cycloheptylcarbonyloxyethyl, 1-methylcyclopentylcarbonyloxymethyl, 1-methylcyclopentyloxycarbonyloxymethyl, 2-methyl-1-(1-methylcyclohexylcarbonyloxy)propyl, 1-(1-methylcyclohexylcarbonylony)propyl, 2-(1-methylcyclohexylcarbonyloxy)propyl, 1-(cyclohexylcarbonyloxy)propyl, 2-(cyclohexylcarbonyloxy)propyl, 2-methyl-1-(1-methylcyclopentylcarbonyloxy)propyl, 1-(1-methylcyclopentylcarbonyloxy)propyl, 2-(1-methylcyclopentylcarbonyloxy)propyl, 1-(cyclopentylcarbonyloxy)propyl, 2-(cyclopentylcarbonyloxy)propyl, 1-(1-methylcyclopentylcarbonyloxy)ethyl, 1-(1-methylcyclopentylcarbonyloxy)propyl, adamantyloxycarbonyloxymethyl, adamantylcarbonyloxymethyl, 1-adamantyloxycarbonyloxyethyl, 1-adamantylcarbonyloxyethyl, cyclohexyloxycarbonyloxy(cyclohexyl)methyl, (cyclohexyl-acetoxy)methyl, 1-(cyclohexylacetoxy)ethyl, 1-(cyclohexylacetoxy)propyl, 2-methyl-1-(cyclohexylacetoxy)propyl, (cyclopentylacetoxy)methyl, 1-(cyclopentylacetoxy)ethyl, 1-(cyclopentylacetoxy)propyl, 2-methyl-1-(cyclopentylacetoxy)propyl, cyclopropylmethoxycarbonyloxymethyl, cyclobutylmethoxycarbonyloxymethyl, cyclopentylmethoxycarbonyloxymethyl, cyclohexylmethoxycarbonyloxymethyl, 1-(cyclopropylmethoxycarbonyloxy)ethyl, 1-(cyclobutylmethoxycarbonyloxy)ethyl, 1-(cyclopentylmethoxycarbonyloxy)ethyl, 1-(cyclohexylmethoxycarbonyloxy)ethyl, 1-(menthyloxycarbonyloxy)ethyl, 1-(menthylcarbonyloxy)ethyl, menthyloxycarbonyloxymethyl, menthylcarbonyloxymethyl, 1-(3-pinanyloxycarbonyloxy)ethyl, 1-(3-pinanylcarbonyloxy)ethyl, 3-pinanyloxycarbonyloxymethyl, 3-pinanylcarbonyloxymethyl, (5-methyl-2-oxo-1,3-dioxolen-4-yl)methyl, (5-phenyl-2-oxo-1,3-dioxolen-4-yl)methyl, (5-isopropyl-2-oxo-1,3-dioxolen-4-yl)methyl, (5-t-butyl-2-oxo-1,3-dioxolen-4-yl)methyl, 1-(5-methyl-2-oxo-1,3-dioxolen-4-yl)ethyl, phthalidyl, dimethylphthalidyl, dimethoxyphthalidyl, carboxymethyl and phenylalanine;
- said carboxy-protecting groups are groups which can be cleaved by chemical means or in vivo by biological means and wherein
- said carboxy-protecting groups which can be cleaved by chemical means are selected from the group consisting of
- alkyl groups having from 1 to 20 carbon atoms;
- halogenated alkyl groups having from 1 to 6 carbon atoms, and wherein the halogen atom is chlorine, fluorine, bromine or iodine;
- cycloalkyl groups having from 3 to 7 carbon atoms,
- aralkyl groups, in which the alkyl part has from 1 to 3 carbon atoms and the or each aryl part is a carbocyclic aromatic group having from 6 to 14 carbon atoms, which may be substituted or unsubstituted and, if substituted, has at least one of substituents .alpha., defined above;
- aryl groups having 6 to 14 carbon atoms and being optionally substituted by one or more substituents .alpha., defined above,
- phenacyl groups optionally substituted by one or more substituents .alpha., defined above;
- terpenyl groups, selected from the group consisting of geranyl, neryl, linalyl, phytyl, menthyl, thujyl, caryl, pinanyl, bornyl, norcaryl, norpinanyl, norbornyl, menthenyl, camphenyl and norbornenyl groups;
- and
- said carboxy-protecting group which can be cleaved in vivo by biological means is selected from the group consisting of
- alkoxyalkyl groups, in which the alkoxy and alkyl parts each have from 1 to 5 carbon atoms;
- halogenated ethyl groups;
- and arylselenyl-substituted ethyl groups, in which the aryl part is as defined above,
- aliphatic acyloxyalkyl groups, in which the acyl group is an alkanoyl group having from 2 to 6 carbon atoms, and the alkyl part has from 1 to 6 carbon atoms;
- alkoxycarbonyloxyalkyl groups wherein the alkoxy part has from 1 to 10 carbon atoms, and the alkyl part has from 1 to 6 carbon atoms;
- cycloalkylcarbonyloxyalkyl and cycloalkyloxycarboxyloxyalkyl groups, in which the cycloalkyl group has from 3 to 10, carbon atoms, is mono- or poly-cyclic and is optionally substituted by alkyl having from 1 to 4 carbon atoms and the alkyl part has from 1 to 6 carbon atoms;
- cycloalkyl-substituted aliphatic acyloxyalkyl groups, in which the acyl group is an alkanoyl group having from 2 to 6 carbon atoms, the cycloalkyl substituent has from 3 to 7 carbon atoms, and the alkyl part has from 1 to 6 carbon atoms;
- cycloalkylalkoxycarbonyloxyalkyl groups selected from the group consisting of cyclopropylmethoxycarbonyloxymethyl, cyclobutylmethoxycarbonyloxymethyl, cyclopentylmethoxycarbonyloxymethyl, cyclohexylmethoxycarbonyloxymethyl, 1-(cyclopropylmethoxycarbonyloxy)ethyl, 1-(cyclobutylmethoxycarbonyloxy)et hyl, 1-(cyclopentylmethoxycarbonyloxy)ethyl and 1-(cyclohexylmethoxycarbonyloxy)ethyl groups;
- terpenylcarbonyloxy(2-oxo-1,3-dioxolen-4-yl)alkyl groups in which each alkyl group, which may be the same or different has from 1 to 6 carbon atoms, and
- the phthalidyl group, which may be unsubstituted or may be substituted by at least one substituent selected from the group consisting of substituents .alpha. defined above;
- or a pharmaceutically acceptable salt or ester thereof.
33 more elements
Dependencies are inferred from the claim text.