A series of N-phenyl-6, 11-dihydrodibenz [b, eloxepin-ll-carboxamides and related derivatives were prepared on the basis of structures of the reported inhibitors of acyl- CoAcholesterol acyltransferase (ACAT). These compounds were tested for their ability to inhibit ACAT (liver microsomes from cholesterol-fed rabbits) in vitro and to decrease serum total cholesterol in cholesterol-fed golden hamsters in vivo. The structure-activity ...