IUPAC:8-methyl-5-(pyridin-2-yl)-3-oxa-9lambda6-thia-5,8-diazatricyclo[8.4.0.0^{2,7}]tetradeca-1(10),2(7),11,13-tetraene-4,6,9,9-tetrone
IUPAC:8-methyl-5-(pyridin-2-yl)-3-oxa-9lambda6-thia-5,8-diazatricyclo[8.4.0.0^{2,7}]tetradeca-1(10),2(7),11,13-tetraene-4,6,9,9-tetrone