Coupling between 2-chloro-5-nitropyridine (I) and 4-nitrophenol (II) affords the diaryl ether (III). Subsequent catalytic hydrogenation of both nitro groups of (III) gives rise to diamine (IV). This is finally acylated with (S)-2,2-dimethylcyclopropanecarbonyl chloride (V) to furnish the title diamide.