Oxazine
Spiro[2H-indole-2,2'-[2H]pyrido[2,3-h][1,4]benzoxazine]-5'-carboxylicacid, 1,3-dihydro-1,3,3-trimethyl-5,6,7-tris(trifluoromethyl)-, methyl ester
9(S),16-Diethyl-9-hydroxy-1,2,3,9,12,15-hexahydro-10H,13H-pyrano[3'',4'':6',7']indolizino[2',1':5,6]pyrido[3,2-f][1,4]benzoxazine-10,13-dione