Table 1.
(3, 23, 26, 27) |
(21a-21c, 21e, 21n) |
||||
---|---|---|---|---|---|
Compound | R1 | IC50 (μM) a | Compound | R2 | IC50 (μM) |
3 | 17 ± 2 | 21a | 680 ± 90 | ||
27 | NI b | 21b | NI b | ||
(±)-23 | 192 ± 53 | 21n | 95 ± 14 | ||
26 | 230 ± 63 | 21c | 100 ± 15 | ||
21e | 160 ± 22 |
a Values for which standard deviations are given are the calculated mean values of at least two measurements. b NI: no inhibition at a concentration of 0.2 mM.