(5beta,6beta,7beta,11alpha)-matridin-15-one 1H,5H,10H-dipyrido[2,1-f:3',2',1'-ij][1,6]naphthyridin-10-one, dodecahydro-, (7aR,13aS,13bS,13cR)- InChI=1/C15H24N2O/c18-14-7-1-6-13-12-5-3-9-16-8-2-4-11(15(12)16)10-17(13)14/h11-13,15H,1-10H2/t11-,12+,13+,15-/m1/s