Scientists at Chugai discovered an erythromycin-derived motilin agonist called Mitemcinal (aka GM-611 or 3'-N-dimethyl-11-deoxy-3'-N-isopropyl-12-O-methyl-11-oxo-8,9-didehydroerythromycin.) Mitemcinal was believed to have strong prokinetic properties, similar to its parent molecule, but lack antibiotic properties.