Table 1. SAR Studies: Substituents on Ring Aa.
compd | R1 | R2 | R3 | EC50 (μM) |
---|---|---|---|---|
1 | H | H | H | 10 |
2 | C(O)NH2 | H | H | >100 |
3 | H | C(O)NH2 | H | 9.2 |
4 | H | H | C(O)NH2 | 42 |
5 | H | C(O)NHMe | H | 6.2 |
6 | H | C(O)N(Me)2 | H | 6.4 |
7 | H | C(O)NHEt | H | 11 |
8 | H | C(O)NHiPr | H | 8.9 |
9 | H | C(O)NHPh | H | 6.4 |
gemcitabine | 0.0015 | |||
erlotinib | 27 | |||
3 mA | >100 | |||
chloroquine | 14 | |||
spautin-1 | 20 |
EC50 values were determined in triplicate in MIA PaCa-2 cells.