1 RZW 5,6,8-trimethoxy-1,4-dimethylquinolin-2(1h)-one 1.000 2 VVV 5,6,8-trimethoxy-4-methylquinolin-2(1h)-one 0.947 3 EWQ 6,8-dimethoxy-1,4-dimethylquinolin-2(1h)-one 0.895 4 MXX 5,8-dimethoxy-1,4-dimethylquinolin-2(1h)-one 0.895 5 MZX 5,8-dimethoxy-4-methylquinolin-2(1h)-one 0.842 6 VAP 6,7,8-trimethoxy-1,4-dimethylquinolin-2(1h)-one 0.810 7 HGZ 6,7,8-trimethoxy-4-methylquinolin-2(1h)-one 0.762 8 A7B 8-methoxy-4-methylquinolin-2(1h)-one 0.737 9 YTR 7,8-dimethoxy-1,4-dimethylquinolin-2(1h)-one 0.714