1. 2) T. NOZOE, Seventy Years in Organic Chemistry, (J. I. Seeman edn), American Chemical Society, Washington, DC (1991).
2. 4) K. Kubo, A. Mori & H. Takeshita, Sci. Rep. Res. Inst. Eng., Kanagawa Univ., 18, 40-57 (1995).
3. Synthesis and metallophilic properties of troponoid thiocrown ethers