The crystal structures and Hirshfeld surface analysis of 6-(naphthalen-1-yl)-6a-nitro-6,6a,6b,7,9,11a-hexahydrospiro[chromeno[3′,4′:3,4]pyrrolo[1,2-<i>c</i>]thiazole-11,11′-indeno[1,2-<i>b</i>]quinoxaline] and 6′-(naphthalen-1-yl)-6a′-nitro-6′,6a′,6b′,7′,8′,9′,10′,12a′-octahydro-2<i>H</i>-spiro[acenaphthylene-1,12′-chromeno[3,4-<i>a</i>]indolizin]-2-one
Acta crystallographica. Section E, Crystallographic communications