previously reported a novel pyrrole derivative 1 which possesses a tetrahydropyridine group at the β-position with a proinflammatory cytokine TNFα production inhibitor. Herein, we report the synthesis and biologicalactivity of N- and α-position substituted tetrahydropyridine derivatives. In this series, we found that compound 3o showed good inhibitory activity in vitro (inhibition of lipopolysaccharide