The present invention provides compounds represented by the structural formula (I): ##STR00001## or pharmaceutically acceptable isomers, salts, solvates or esters of the compound of Formula (I), wherein each of the substituents is as specified herein, formulations iucluding the above compounds, processes for preparing the same and methods for treating vascular conditions, such as atherosclerosis or hypercholesterolemia, diabetes, obesity, stroke, demyelination and lowering plasma levels of sterols and/or stanols.