2-(2-chloro-4-methylsulfonylphenyl)-4'-chloro-3a,4-diethoxyflavane(4,3-d)-delta(1,9b)-1,2,3-thiadiazoline
2-(2-chloro-4-methylsulfonylphenyl)-4'-chloro-3a,4-diethoxyflavane(4,3-d)-delta(1,9b)-1,2,3-thiadiazoline