Juha H. Siitonen, Sherlin Lira, Muhammed Yousufuddin and László Kürti
Org. Biomol. Chem., 2020,18, 2051-2053
DOI:
10.1039/D0OB00270D,
Communication
Total synthesis of isatindigotindoline C, a 3,3′-spiropyrrolidine oxindole alkaloid, is achieved in two steps using an exo-selective decarboxylative 1,3-dipolar cycloaddition as the key step. The synthesis verifies the originally assigned relative anti-stereochemistry for the bis-oxindole core of isatindigotindoline C.