Fig. 5: Optimized synthesis of N4-ethylated substrates18.
From: Discovery of extended product structural space of the fungal dioxygenase AsqJ

Yields are given over seven steps, starting from loaded resin. DFIH 1,3-dimethyl-2-fluoro-4,5-dihydro-1H-imidazolium hexafluorophosphate, PyBroP bromotripyrrolidinophosphonium hexafluorophosphate.