| abstract |
Compounds of the formula ##STR1## wherein R 1 , R 2 , R 3 and R 4 each are independently hydrogen, halogen, C 1-4 alkyl, C 1-4 alkoxy or trifluoromethyl; n A is ##STR2## R 5 is hydrogen, a hydrolyzable ester group or a cation to a form a non-toxic pharmaceutically acceptable salt, n are novel antihypercholesterolemic agents which inhibit cholesterol biosynthesis. Intermediates and processes for their preparation are disclosed. |