R. Millini et al., CHEMICAL DEGRADATION OF SPIROINDOLINONAPHTHOXAZINES - DIHYDRONAPHTHO[2,1-B]QUINOLINO[3,2-E][1,4]OXAZINE, C22H20N2O, Acta crystallographica. Section C, Crystal structure communications, 50, 1994, pp. 2096-2098
The molecular structure of the title compound consists of a naphthoxaz
ine moiety fused to a tetrahydroquinoline fragment. The heterocyclic r
ing of the latter displays a 'boat' conformation. No geometrical diffe
rences from other similar compounds have been detected for the naphtho
xazine system.