A n In contrast to this, the second structure VI II has an imino nitrogen atom outside the 5-membered ring containing an oxygen atom, where a 2-iminotetrahydrofuran system is formed. Tyzack Fine Sponge Float 9" x 4". The compound according to claim 1. Each R 6 is hydrogen, R 7 is amino substituted with fluorenylmethoxycarbonyl, or each R 6 is amino substituted with fluorenylmethoxycarbonyl, and R 7 is hydrogen.
nest...