“XN 
N CH, 
H 
MTHC 
2-Methyltetrahydro- 
-B-carboline 
CH,O 
N CH, 
H 
6-MeO-THC 
2-Methyl-6-methoxy- 
tetrahydro-B-carboline 
CH,0 
N CH, 
HCH, 
6-MeO-DMTHC 
| ,2-Dimethyl-6-methoxy- 
tetrahydro-B-carbolines 
230 
