TABLE 1. — Rf values of lichen secondary metabolites (LSMs) related to norstictic acid (N) and atranorin (A) in solvent systems A, B and C (cf. Arup et al. 1993).
|
RfLSM / RfN, |
RfLSM / RfN, |
RfLSM / RfN, |
| LSM |
RfA |
RfA |
RfA |
| – |
in solvent system A |
in solvent system B |
in solvent system C |
| atranorin |
36 |
30 |
28 |
| perlatolic acid |
30 |
32 |
24 |
| imbricaric acid |
30 |
32 |
22 |
| 4-O-methylphysodic acid |
– |
19 |
21 |
| ɑ-collatolic acid |
24 |
21 |
18 |
| anziaic acid |
– |
– |
16 |
| 4-O-demethylimbricaric |
| acid |
– |
21 |
15 |
| β-collatolic acid |
– |
– |
13 |
| olivetoric acid |
27 |
24 |
11 |
| physodic acid |
18 |
18 |
10 |
| ɑ-alectoronic acid |
21 |
16 |
7 |
| β-alectoronic acid |
– |
– |
3 |