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Chapter – 3 Preparation of small library…..
Reagents / Reaction Condition (f): 2-propylpentanohydrazide, Glacial acetic
acid, Ethanol / Reflux, 5 hours.
3.2.7 SCHEME - 2
R 1
Reagents / Reaction Condition (g): 2-amino benzothiazole, Con. H2SO4,
Ethanol / Reflux, 4 hours.
3.2.8 SCHEME - 3
N
H
N
N
N
R 2
O
N
O
S
O
g
R
Reagents / Reaction Condition (h): Acetic anhydride / Reflux, 5 hours.
h
Department of Chemistry, Saurashtra University, Rajkot – 360 005 151
R 1
N
N
R 2
N
O
N
N
S
O
N
N
O
CH 3
S
R