L Luan, Z Song, Z Li, Q Wang - Beilstein journal of organic …, 2018 - beilstein-journals.org
Two new series of tricyclic heterocycles, namely 5, 6-dihydro-4H-benzo [b][1, 2, 4] triazolo [1,
5-d][1, 4] diazepinium salts 10 and the related neutral, free bases 13 were synthesized from …