Microsomal triglyceride transfer protein inhibitor; blocks the assembly and release of lipoprotein particles into the bloodstream. Prepn: P. Bertinato et al., WO 03002533; eidem, US 6720351 (2003, 2004 both to Pfizer); and pharmacology: J. Li et al., Bioorg. Med. Chem. Lett. 17, 1996 (2007) DOI PubMed.