(R)-7-Bromo-1,5-dihydro-3,6-dimethylimidazo(2,1-b)quinazolin-2-(3H)-one 7-Bromo-1,5-dihydro-3,6-dimethylimidazo(2,1-b)quinazolin-2(3H)-one 77378-53-1 Imidazo(2,1-b)quinazolin-2-(3H)-one, 7-bromo-1,5-dihydro-3,6-dimethyl-, (R)- Ro 15-2041 Ro-15-2041