The development of drugs through chemical modifications of naturally occurring indole alkaloids has emerged as an attractive research area. However, due to their reactivity, the selective functionalization at the C5 position of the indole ring has been difficult. The development of drugs through chemical modifications of naturally occurring indole alkaloids has emerged as an attractive research area. However, due to their reactivity, the selective functionalization at the C5 position of the indole ring has been difficult. Analytical Chemistry Materials Science Phys.org – latest science and technology news stories