Pure Appl. Chem., 1989, Vol. 61, No. 3, pp. 409-412
doi:10.1351/pac198961030409
Natural product syntheses based on asymmetric Diels-Alder reactions
G. Helmchen, A. F. Abdel Hady, H. Hartmann, R. Karge, A. Krotz, K. Sartor and M. Urmann
Pure Appl. Chem., 1989, Vol. 61, No. 3, pp. 409-412
doi:10.1351/pac198961030409
G. Helmchen, A. F. Abdel Hady, H. Hartmann, R. Karge, A. Krotz, K. Sartor and M. Urmann