(untitled) - Romero, D L; Morge, R A; Biles, C; Berrios-Pena, N; May, P D; Palmer, J R; Johnson, P D; Smith, H W; Busso, M; Tan, C K; Voorman, R L; Reusser, F; Althaus, I W; Downey, K M; So, A G; Resnick, L; Tarpley, W G; Aristoff, P A (J. Med. Chem., 1994)