Chiral Azole Derivatives. 4.<sup>1</sup> Enantiomers of Bifonazole and Related Antifungal Agents: Synthesis, Configuration Assignment, and Biological Evaluation
Stereoselective synthesis of α-aryl-2-benzofuranmethanamines and α-aryl-1H-indole-2-methanamines through palladium-mediated annulation of chiral α-arylpropargylamines
The title compounds, valuable chiral synthons for the synthesis of biologically active compounds, have been prepared in good yield and with high stereoselectivity through palladium-catalyzed heteroannulation of 2-iodophenol or 2-iodo-N-mesylaniline with enantiomerically pure or enriched alpha-arylpropargylamines. (C) 2000 Elsevier Science Ltd. All rights reserved.
Chiral azole derivatives. Part 5: † †For Part 4, see Ref. 1. Synthesis of enantiomerically pure 1-[α-(benzofuran-2-yl)arylmethyl]-1 H -1,2,4-triazoles, antifungal and antiaromatase agents
have been reacted with N-Boc-3-(4-cyanophenyl)oxaziridine to give N-Boc-hydrazines 7a–c, which have in turn been transformed by deprotection and cyclisation into triazoles 4a–c, potent antiaromatase agents, in good overall yield and with high enantiomeric excess.