... Anita R. Maguire * and Declan G. Lowney ... J. Chem., 1978, 31, 1965; S. Robin, F. Huet, A. Fauve and H. Veschambre, Tetrahedron: Asymmetry, 1993, 4, 239; AR Maguire, LL Kelleher and G. Ferguson, J. Mol. Catal. ... Lett., 1981, 131. 7 For an example in which the absolute configuration of the product of a yeast reduction of a β-keto ester changes on increasing the yeast: substrate ratio see: A. Manzocchi, R. Casati, A. Fiecchi and E. Santaniello, J. Chem. ...