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ChemicalBook CAS DataBase List Ethyl 8-bromo-5-methyl-6-oxo-5,6-dihydro-4H-benzo[f]imidazo[1,5-a][1,4]diazepine-3-carboxylate
78756-37-3

Ethyl 8-bromo-5-methyl-6-oxo-5,6-dihydro-4H-benzo[f]imidazo[1,5-a][1,4]diazepine-3-carboxylate synthesis

6synthesis methods
-

Yield:78756-37-3 40%

Reaction Conditions:

Stage #1: 7-bromo-3,4-dihydro-4-methyl-2H-1,4-benzodiazepine-2,5-(1H)-dionewith diethyl chlorophosphate;lithium diisopropyl amide in tetrahydrofuran at 0;
Stage #2: ethyl 2-cyanoacetatewith lithium diisopropyl amide in tetrahydrofuran;

References:

Li, Xiaoyan;Cao, Hui;Zhang, Chunchun;Furtmueller, Roman;Fuchs, Karoline;Huck, Sigismund;Sieghart, Werner;Deschamps, Jeffrey;Cook, James M. [Journal of Medicinal Chemistry,2003,vol. 46,# 26,p. 5567 - 5570]