114566-68-6 2H-1,4-Benzoxazin-3(4H)-one, 6-(2-((4-chlorophenyl)amino)-4-thiazolyl)-4-ethyl- 6-(2-((4-Chlorophenyl)amino)-4-thiazolyl)-4-ethyl-2H-1,4-benzoxazin-3(4H)-one