Fig. 2

(A) AC, K2CO3, reflux, 24Â h (B) ACN, K2CO3, reflux, 24Â h, where R is selected from imidazole/2-methylimidazole/2-ethylimidazole/4-methylimidazole/1,2,4-triazole/tryptamine/5-methoxytryptamine.
(A) AC, K2CO3, reflux, 24Â h (B) ACN, K2CO3, reflux, 24Â h, where R is selected from imidazole/2-methylimidazole/2-ethylimidazole/4-methylimidazole/1,2,4-triazole/tryptamine/5-methoxytryptamine.