Compound No.

R1, R2 and R3

IUPAC NAME

11

R1 = R2 = R3 = H

3-[3-(4-Cyanophenyl)-5,5-dimethyl-4-oxo-2-

thioxoimidazolidin-1-yl]propane-1-sulfonamide

12

R1 = Me, R2 = R3 = H

3-[3-(4-Cyano-3-methylphenyl)-5,5-dimethyl-4-oxo-2-

thioxoimidazolidin-1-yl]propane-1-sulfonamide

13

R1 = OMe, R2 = R3 = H

3-[3-(4-Cyano-3-methoxyphenyl)-5,5-dimethyl-4-oxo-2- thioxoimidazolidin-1-yl]propane-1-sulfonamide

14

R1 = Cl, R2 = R3 = H

3-[3-(3-Chloro-4-cyanophenyl)-5,5-dimethyl-4-oxo-2- thioxoimidazolidin-1-yl]propane-1-sulfonamide

15

R1 = CF₃, R2 = Me, R3 = H

3-[3-(4-Cyano-2-methyl-3-trifluoromethylphenyl)-5,5- dimethyl-4-oxo-2-thioxoimidazolidin-1-yl]propane-1- sulfonamide

16

R1 = CF₃, R2 = H, R3 = Me

3-[3-(4-Cyano-2-methyl-5-trifluoromethylphenyl)-5,5- dimethyl-4-oxo-2-thioxoimidazolidin-1-yl]propane-1- sulfonamide