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  Indian J Med Microbiol
 

Figure 2: Route of synthesis for compounds (4a-4k) as Scheme 1. Reagent and conditions: (a) Phenyl hydrazine, abs. EtOH, reflux (b) DMF/POCl3, 55-60°C, warm (c) aromatic amines, NaBH4/I2, MeOH, stirring

Figure 2: Route of synthesis for compounds (4a-4k) as Scheme 1. Reagent and conditions: (a) Phenyl hydrazine, abs. EtOH, reflux (b) DMF/POCl<sub>3</sub>, 55-60°C, warm (c) aromatic amines, NaBH<sub>4</sub>/I<sub>2</sub>, MeOH, stirring