[Pyrazine-1,2-a-and 1,4-diazepino-1-2-1-indoles. I. Synthesis of 10-phenyl-1,2,3,4-yrytshyftopytsxino-1,2-a-indoles and of 11-phenyl-2,3,4,5-tetrahydro-1H-1,4-diazepino-1,2-a-indoles].