Influence of the C(4)C(3)CO dihedral angle of chiral NADH mimics on the stereoselectivity of reductions
作者:Jean-Luc Vasse、Vincent Levacher、Jean Bourguignon、Georges Dupas
DOI:10.1016/s0957-4166(02)00101-5
日期:2002.3
Herein we report the stereoselective synthesis of new chiral NADH mimics 2 and 13 of the benzo [b]-1,6-naphthryridine series. The synthesis of 2 and 13 relies upon a Friedlander-type condensation between the amino imine 3 and the piperidine-2,4-dione 4 bearing a stereogenic center at C(6). The resulting NADH models were involved in the reduction of methyl benzoylformate. A comparison of their performance with that of previously reported NADH mimics such as model 1, throws now light on the role played by the C(4) C(3)-C-O dihedral angle (alpha) on the stereoselectively of the hydride transfer. (C) 2002 Elsevier Science Ltd. All rights reserved.