. Author manuscript; available in PMC: 2009 Feb 6.

Published in final edited form as: J Med Chem. 2008 Jun 26;51(12):3466–3479. doi: 10.1021/jm701478a

Table 1.

IC₅₀ values for 4-Amino-, 4-alkoxy- and 4-alkylthioquinoline derivatives.



Compound	Experimental IC₅₀ (μM)						Previously reported IC₅₀ (μM)

	HB3	Dd2	SI^*	GCO3	FCB	SI^*	NF54²⁶	K1²⁶	SI^*	Haití 135²⁹	Indochina I²⁹	SI^*
CQ	0.011	0.116	10.50	0.010	0.157	15.70	0.016	0.315	19.60	0.007	0.095	13.60
1	0.012	0.081	6.750	0.012	0.089	7.420	0.021	0.133	1.250	-	-	-
2	0.007	0.115	16.40	0.020	0.085	4.250	0.015	0.365	24.30	-	-	-
3	0.018	0.649	36.10	0.026	0.854	32.80	-	-	-	-	-	-
4	0.021	0.786	37.40	0.062	1.270	20.50	-	-	-	-	-	-
5	0.019	0.982	31.30	0.052	0.987	10.00	-	-	-	-	-	-
6	0.013	0.026	2.000	0.013	0.030	2.300	0.021	0.049	2.330	0.007	0.005	0.714
7	0.006	0.026	4.330	0.007	0.029	4.140	0.018	0.060	3.330	0.005	0.006	1.200
8	0.012	0.199	16.60	0.049	0.181	3.690	-	-	-	0.005	0.051	10.20
9	0.029	0.357	12.30	0.066	0.509	7.170	-	-	-	0.006	0.058	9.670
10	0.097	0.085	0.876	0.016	0.102	6.380	-	-	-	0.005	0.056	11.20
11	5.800	4.570	0.788	5.290	5.080	0.960	-	-	-	-	-	-
12	5.100	2.800	0.549	2.340	2.330	0.996	-	-	-	-	-	-
13	2.920	1.180	0.404	1.660	1.100	0.663	-	-	-	-	-	-
14	1.870	1.010	0.540	1.490	0.930	0.624	-	-	-	-	-	-
15	3.060	4.160	1.360	2.270	1.190	0.524	-	-	-	-	-	-
16	9.530	5.500	0.577	5.740	6.020	1.040	-	-	-	-	-	-
17	5.600	2.660	0.475	3.460	1.610	0.465	-	-	-	-	-	-
18	7.390	4.440	0.601	5.630	3.500	0.622	-	-	-	-	-	-
19	2.330	1.080	0.464	1.610	0.814	0.506	-	-	-	-	-	-
20	6.020	4.110	0.683	4.450	3.300	0.742	-	-	-	-	-	-
21	1.490	1.290	0.866	2.250	3.830	1.700	-	-	-	-	-	-
22	0.094	0.409	4.350	0.074	0.352	4.750	-	-	-	-	-	-
23	0.073	0.316	4.310	0.045	0.604	13.40	-	-	-	-	-	-

Selectivity Index; ratio of the IC₅₀ for a given drug shown by a CQ - resistant strain vs. IC₅₀ for the companion CQ – sensitive strain. Column 4 shows SI computed as Dd2 IC₅₀ / HB3 IC₅₀, column 7 shows FCB IC₅₀ / GCO3 IC₅₀, column 10 is K1 / NF54, and column 13 is IndoI/ Haiti 135.