The present invention pertains to a new compound E)-2-(5-((4-methoxy-2-(trifluoromethyl)quinolin-6-yl)methoxy)-2-((4-(trifluoromethyl) benzyl)oxy)-benzylidene) hexanoic acid (MTTB), and its derivatives. The compounds of the invention are useful as selective peroxisome proliferator-activated receptor gamma (PPARγ) antagonists and are indicated for the use in the treatment of immune related diseases such as systemic inflammation, sepsis and septic shock.