1,8-Naphthyridine, 1,2,3,4,4a,5,6,7-octahydro-2,2,4a,7,7-pentamethyl-
1,2,3,4,4a,5,6,7-Octahydro-2,2,4a,7,7-pentamethyl-1,8-naphthyridine
1,2,3,4,4a,5,6,7-Octahydro-2,2,4a,7,7-pentamethylnaphthyridine
2,2,4a,7,7-Pentamethyl-1,2,3,4,4a,5,6,7-octahydro-1,8-naphthyridine