89771-82-4;1,4:5,8-Dimethanophthalazine, 1,4,4a,5,6,7,8,8a-octahydro-10,10-dimethyl- (1.alpha.,4.alpha.,4a.alpha.,5.alpha.,8.alpha.,8a.alpha.)-;1,4:5,8-Dimethanophthalazine, 1,4,4a,5,6,7,8,8a-octahydro-10,10-dimethyl- (1alpha,4alpha,4aalpha,5alpha,8alpha,8aalpha)-;12,12-dimethyl-4,5-diazatetracyclo[6.2.1.1~3,6~.0~2,7~]dodec-4-ene;AK-249/12983214