Figure 1
(Top) Reaction scheme depicting the synthesis of (1) and (5) from (3a), for which (1) is the major product of the reaction. (Bottom) Reaction scheme depicting the synthesis of (6) and (7) from (3a), and (8) and (2) from (3b), for which (6) is the major product of the reaction from (3a), and (8) is the major product from (3b). |