Fig. 3From: Design, synthesis and biological activity of hydroxybenzoic acid ester conjugates of phenazine-1-carboxylic acidSynthetic route of target compounds. Reagents and conditions: a oxalyl chloride, CH2Cl2, DMF, reflux, 8 h; b alcohol, reflux, overnight; c hydroxybenzoic acid ester, CH2Cl2, room temperature to reflux, 2 hBack to article page