1H-indolo[3,2,1-de][1,5]naphthyridine, 2,3,3a,4-tetrahydro-3-methyl- 3-methyl-2,3,3a,4-tetrahydro-1H-indolo[3,2,1-de]-1,5-naphthyridine InChI=1/C15H16N2/c1-16-10-8-12-11-5-2-3-6-13(11)17-9-4-7-14(16)15(12)17/h2-6,9,14H,7-8,10H2,1H