(untitled) - Song, Z J; Zhao, M; Desmond, R; Devine, P; Tschaen, D M; Tillyer, R; Frey, L; Heid, R; Xu, F; Foster, B; Li, J; Reamer, R; Volante, R; Grabowski, E J. J; Dolling, U H; Reider, P J (J. Org. Chem., 1999)