American Chemical Society, Organic Letters, 8(6), p. 1201-1204, 2004
DOI: 10.1021/ol036510q
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The Mannich reaction was successfully employed to obtain two pyridine-based ligands 1 and 2. The latter represents the first example of a Mannich reaction leading to a 12-membered pyridine-containing macrocycle. [reaction: see text]