Bibliografisk träff 2014-10-31 Preparation of 1,7- and 3,9-dideazapurines from 2-amino-3-iodo- and 3-amino-4-iodopyridines and activated acetylenes by conjugate addition and copper-catalyzed intramolecular arylation. Zhu Y, Back TG. J Org Chem · research support, non-u.s. gov't; journal article · DOI 10.1021/jo502150v