Table 1.
Entry | Compound No. | R1 | R2 | Antibiofilm Activity IC50 (μM) a | S. mutans MIC50 (μM) b |
---|---|---|---|---|---|
1 | Ia | H | 38.3 ± 3.6 | 32.6 ± 0.1 | |
2 | Ib | H | 13.5 ± 0.8 | 23.1 ± 0.2 | |
3 | Ic | H | 30.9 ± 4.6 | 34.2 ± 0.8 | |
4 | Id | H | 84.7 ± 7.5 | 63.9 ± 13.6 | |
5 | Ie | H | 22.4 ± 2.6 | 28.1 ± 0.4 | |
6 | If | H | 13.9 ± 1.7 | 24.4 ± 0.2 | |
7 | Ig | H | 30.4 ± 7.6 | 36.3 ± 0.8 | |
8 | Ih | H | 70.1 ± 1.0 | 68.0 ± 4.1 | |
9 | Ii | H | 88.2 ± 7.6 | 111.6 ± 27.4 | |
10 | IIa | 16.3 ± 3.4 | 26.4 ± 0.6 | ||
11 | IIb | 2.5 ± 0.1 | 22.7 ± 0.6 | ||
12 | IIc | 2.6 ± 0.1 | 28.0 ± 1.9 | ||
13 | IId | 0.4 ± 0.1 | 1.7 ± 0.1 | ||
14 | IIe | 2.0 ± 0.1 | 5.8 ± 2.8 | ||
15 | 2A4 c | 0.94 ± 0.02 | 2.0 ± 0.5 |
a Determined by S. mutans biofilm inhibition assay; b determined by S. mutans growth inhibition assay; c reference biofilm inhibitor [34]; a,b measurements were carried out in triplicate, and the average value with standard deviation is reported.