An Easy Access to Novel Sugar-Based Spirooxindole-pyrrolidines or -pyrrolizidines through [3+2] Cycloaddition of Azomethine Ylides - Hemamalini, Arasappan; Nagarajan, Subbiah; Ravinder, Pawar; Subramanian, Venkatesan; Das, Thangamuthu Mohan (Synthesis, 2011)