Affinities (nM) of synthesized vesamicol derivatives and haloperidol for sigma receptors.

	Sigma-1 (Ki)	Sigma-2 (Ki)
1	5.8 ± 0.9a	50.4 ± 13.0a
2	8.7 ± 1.0a	22.3 ± 3.5a
3	10.2 ± 2.3	41.8 ± 2.4
4	19.4 ± 1.5	32.5 ± 4.3
5	17.2 ± 7.6	25.1 ± 2.2
6	7.7 ± 1.4	22.2 ± 2.8
7	9.8 ± 5.7	44.5 ± 55.3
8	4.4 ± 0.7	26.0 ± 7.2
9	21.5 ± 6.4	371.1 ± 125.1
10	37.1 ± 10.7	116.1 ± 15.0
11	12.4 ± 2.5	137.9 ± 59.9
12	4.8 ± 1.4	8.1 ± 0.6
13	9.9 ± 0.8	148.3 ± 12.3
14	8.1 ± 0.9	12.6 ± 0.6
15	7.9 ± 0.9	73.6 ± 14.0
17	14.6 ± 4.2	16.9 ± 5.4
Haloperidol	13.9 ± 3.7	114.3 ± 18.7

^aData were reported previously.¹