Bunnage, Mark E.Davies, Stephen G.Roberts, Paul M.Smith, Andrew D.Withey, Jonathan M.2015-04-172022-05-272022-05-272004Bunnage, M., Davies, S., Roberts, P., Smith, A., & Withey, J. (2004). Asymmetric synthesis of the cis- and trans-stereoisomers of 4-aminopyrrolidine-3-carboxylic acid and 4-aminotetrahydrofuran-3-carboxylic acid. Organic & Biomolecular Chemistry, 2(19), 2763-2776. doi:10.1039/B407558Ghttps://hdl.handle.net/20.500.14078/277The diastereoselective conjugate addition of lithium (S)-N-benzyl-N-alpha-methylbenzylamide has been successfully applied to the first asymmetric syntheses of cis-(3S,4R)- and trans-(3R,4R)-4-aminotetrahydrofuran-3-carboxylic acids (26% and 25% overall yield respectively, > 98% d.e. and > 97% e. e. in each case). Furthermore, the most efficient asymmetric synthesis to date of cis-( 3R, 4R)- and trans-( 3R, 4S)-4-aminopyrrolidine carboxylic acids is delineated: for cis-( 3R, 4R), four steps, > 98% d.e., 52% overall yield; for trans-( 3R, 4S), five steps, > 98% d.e., 50% overall yield.15 kbenAll Rights Reservedbeta-amino acidsinfluenza neuraminidase inhibitorskinetic resolutionArticlehttps://doi.org/10.1039/B407558G