phenyl-1 bromo-2 butanol-1

2,5-diethyl-4-phenyl-1,3-oxazole

6-ethyl-2,5-diphenyl-4,6-dihydro-1,3,4-thiadiazin-5-ol

2-benzyl-6-ethyl-5-phenyl-4,6-dihydro-1,3,4-thiadiazin-5-ol

6-ethyl-2,5-diphenyl-6H-1,3,4-thiadiazine