Compound

R

mp (˚C)

Yield (%)

Molecular formula (M.wt)

Analysis %

Calcd

Found

5a

H

240 - 242

33

C₂₆H₂₅N₅O₂S₃

535.70

C 58.29

H 4.70

N 13.07

58.38

4.76

13.23

5b

Br

194 - 196

46

C₂₆H₂₄BrN₅O₂S₃

615.61

C 50.81

H 3.94

N 11.39

50.87

3.92

11.54

5c

Cl

204 - 206

50

C₂₆H₂₄ClN₅O₂S₃

570.15

C 54.77

H 4.24

N 12.28

54.86

4.26

12.39

5d

OCH₃

206 - 208

62

C₂₇H₂₇N₅O₃S₃

565.73

C 57.32

H 4.81

N 12.38

57.43

4.79

12.52