Study of nitrogen- and sulfur-containing heterocycles. 54. Properties and conversions of pyrimido[4,5-b]-1,4-benzothiazepines. Synthesis of a novel heterocyclic system: Pyrimido[5,4-c]isoquinoline
Study of nitrogen- and sulfur-containing heterocycles. 54. Properties and conversions of pyrimido[4,5-b]-1,4-benzothiazepines. Synthesis of a novel heterocyclic system: Pyrimido[5,4-c]isoquinoline