tert-Butyl 5h-spiro[pyrido[3,2-e]pyrrolo[1,2-a]pyrazine-6,3'-pyrrolidine]-1'-carboxylate 1g

tert-Butyl 5h-spiro[pyrido[3,2-e]pyrrolo[1,2-a]pyrazine-6,3'-pyrrolidine]-1'-carboxylate 1g