Indene

Abstract: Compounds of formula (I), wherein R is hydrogen or primary or secondary C1-6alkyl, R1 is primary or secondary C1-6alkyl or R and R1 together are (CH2)m or (Z)-CH2-CH=CH-CH2- wherein m is 2, 3, 4, 5 or 6, Ro is C1-6alkyl, C3-7cycloalkyl or ring A (II) each or R2 and R4 is independently hydrogen, C1-4alkyl, C1-4alkoxy (except t-butoxy), trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, each of R3 and R5 is independently hydrogen, C1-3alkyl, C1-3alkoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, R6 is hydrogen, C1-2alkyl, C1-2alkoxy, fluoro or chloro, with the proviso that there may only be one each of trifluoromethyl, phenoxy or benzyloxy on each of the phenyl and indene rings X is -(CH2)n - or - (CH2)qCH=CH(CH2)q- wherein n is 1, 2 or 3 and both q's are 0 or one is 0 and the other is 1, and Z is (III) wherein Q is (IV) wherein each R7 is the same primary or secondary C1-6alkyl or together they represent -(CH2)2-, -(CH2)3-, R10 is hydrogen or C1-3alkyl, with the proviso that Q may be other than (V) only when X is -CH=CH- or -CH2-CH=CH- and/or R10 is C1-3alkyl, in free acid form, or in the form of an ester or -lactone thereof or in salt form as appropriate, which are indicated for use as hypolipoproteinemic and anti-atherosclerotic agents.