1,3,3-Trimethylindolinonaphthospirooxazine STRYCHNINE 10,11-Dimethoxystrychnine 1,3,3-Trimethylindolinobenzopyrylospiran 1',3',3'-Trimethyl-6-hydroxyspiro(2H-1-benzopyran-2,2'-indoline) Indoline 5,7-Dimethylindoline 5-Chloro-1,3-dihydro-1,3,3-trimethylspiro[2 H-indole-2,3'-[3 H]naphth[2,1-b][1,4]oxazine]