The cyclization of 9-fluoro-6-(tosyloxy)-5,10-dihydrobenzo[g]isoquinoline-5,10-dione (I) with 2-(dimethylamino)ethylhydrazine (II) gives 2-[2-(dimethylamino)ethyl]-5-(tosyloxy)indazolo[4,3-gh]isoquinolin-6(2H)-one (III), which is finally condensed with N,N-dimethylethylene-1,2-diamine (IV) to afford the title compound.
The cyclization of 9-fluoro-6-(tosyloxy)-5,10-dihydrobenzo[g]isoquinoline-5,10-dione (I) with 2-aminoethylhydrazine (II) gives 2-(2-aminoethyl)-5-(tosyloxy)indazolo[4,3-gh] isoquinolin-6(2H)-one (III), which is finally condensed with N,N-dimethylethylene-1,2-diamine (IV) to afford the title compound.
The cyclization of 9-fluoro-6-(tosyloxy)-5,10-dihydrobenzo[g]isoquinoline-5,10-dione (I) with 2-(dimethylamino)ethylhydrazine (II) gives 2-[2-(dimethylamino)ethyl]-5-(tosyloxy)indazolo[4,3-gh]isoquinolin-6(2H)-one (III), which is finally condensed with ethylene-1,2-diamine (IV) to afford the title compound.