label: 2-nitro-5a-(2-(4-dimethylaminophenyl)-ethylene)-6,6-dimethyl-5a,6-dihydro-12H-indolo(2,1-b)(1,3)benzooxazine
label_lc: 2-nitro-5a-(2-(4-dimethylaminophenyl)-ethylene)-6,6-dimethyl-5a,6-dihydro-12h-indolo(2,1-b)(1,3)benzooxazine