Fig. 4. (a) Cage-templated synthesis of N-methylfulleropyrrolidine trisadducts; (b) relative yields (based on HPLC integration) for unreacted C₆₀ (black) and Prato adducts 2 (mono, blue), 3 (bis, green) and 4 (tris, red) for control experiment and cage-templated reactions.