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  Indian J Med Microbiol
 

Figure 3: Synthetic route of UA derivatives. Reaction conditions: (A): (Ac)2O, pyridine, RT, 30 min; (B): (COCl)2, DMF, RT, 2 h; (C): aniline, TEA, reflux, 5 h, CH2Cl2, HCl; (D): p-toluylaniline, TEA, reflux, 5 h, CH2Cl2, HCl; and (e) PCC, acetone, RT, 48 h

Figure 3: Synthetic route of UA derivatives. Reaction conditions: (A): (Ac)<sub>2</sub>O, pyridine, RT, 30 min; (B): (COCl)<sub>2</sub>, DMF, RT, 2 h; (C): aniline, TEA, reflux, 5 h, CH<sub>2</sub>Cl<sub>2</sub>, HCl; (D): <i>p</i>-toluylaniline, TEA, reflux, 5 h, CH<sub>2</sub>Cl<sub>2</sub>, HCl; and (e) PCC, acetone, RT, 48 h