... 8; Y. Watanabe, C. Nakamoto, S. Ozaki; Synlett (1993), pp. 115–116. Full Text via CrossRef. 9; a SL Beaucage, RP Iyer; Tetrahedron, 48 (1992), pp. 2223–2311. Full Text via CrossRef. b SL Beaucage, RP Iyer; Tetrahedron, 49 (1993), pp. 1925–1963. ...