1-Naphthalenecarboxylic acid, 4-[2-(11-ethyl-6,11-dihydro-2, 5-dimethyl-6-oxo-5H-dipyrido[2,3-e:3',2'-b][1,4]diazepin-8-yl)ethoxy]-5,6,7,8-tetrahydro- AIDS-212866 AIDS212866