Fig. 4: Synthesis of SPM-1 and SPM-2.
From: Synthesis of macrocyclic nucleoside antibacterials and their interactions with MraY

DABCO 1,4-diazabicyclo[2.2.2]octane, dba dibenzylideneacetone, EDCI 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide, Ns nosy, ROE rotating frame nuclear Overhauser effect.