tert-butyl 8-ehtynyl-5,6-dihydro-5-methyl-6-oxo-4H-imidazol(1,5-alpha)(1,4)benzodiazepine-3-carboxylate
tert-butyl 8-ehtynyl-5,6-dihydro-5-methyl-6-oxo-4h-imidazol(1,5-alpha)(1,4)benzodiazepine-3-carboxylate