Table 1.
Chemical structures of compounds 1–14 and their inhibitory activities of p70S6K phosphorylation.
| Compd. |
R1 |
R2 |
Inhibition ratio of p70S6K phosphorylation at 20 μmol/L (%)a |
| NTZ (1) | NO2 | OAc | 50.21±3.11 |
| 2 | NO2 | OH | 43.09±2.98 |
| 3 | NO2 | H | 64.71±4.20 |
| 4 | H | OAc | 9.98±5.16 |
| 5 | CN | OAc | 70.85±3.56 |
| 6 | COOCH3 | OAc | 32.72±7.87 |
| 7 | COOBn | OAc | 18.88±5.27 |
| 8 | SCH3 | OAc | 44.74±9.98 |
| 9 | SO2CH3 | OAc | 10.67±10.51 |
| 10 | COOH | OAc | −4.51±19.40 |
| 11 | ![]() |
OAc | 56.27±4.61 |
| 12 | ![]() |
OAc | 85.20±1.76 |
| 13 | ![]() |
OAc | 69.85±0.53 |
| 14 | ![]() |
OAc | 28.21±6.44 |
Results are expressed as the mean ± SD (n ≥ 3).



