Antibacterial activity of substituted 5-methylbenzo[c]phenanthridinium derivatives

X1 and X12 = H, phenyl, 4-bipheny R2,R3 = OCH3 or -OCH2O- R7,R8 = OCH3 or O-CH2O- and X1 = C2H3, C3H5, C6H9, C6H11, 4-N(CH3)2phenyl, 3,4,5-trimethoxyphenyl, 3-furanyl, or 3-pyridyl R2,R3,R7,R8 = OCH3.