Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Tumor cell selectivity (Selectivity Index (SI)) of tested tetracycles 18a–d–20a–d.
| Compound | Neuro-2a | HeLa | Ascitic Erclich Carcinoma |
|---|---|---|---|
| 18a | 0.6 | 0.1 | 0.2 |
| 18b | 1 | 0.4 | 2.6 |
| 18c | 0.9 | 0.4 | 0.8 |
| 18d | 1.5 | 0.5 | 1 |
| 19a | 1.4 | 1.5 | 9.3 |
| 19b | 0.4 | 0.3 | 1.3 |
| 19c | 0.4 | 1.2 | 0.8 |
| 19d | 1 | 1.8 | 2.1 |
| 20a | 1 | 0.1 | 0.3 |
| 20b | 0.4 | 0.1 | 0.5 |
| 20c | 0.1 | 0.1 | 0.4 |
| 20d | 0.5 | 1.75 | 0.6 |
| Cucumarioside A2-2 | 0.4 | 0.4 | 0.8 |
