Total synthesis of (±)-17-norcamptothecin, a novel E-ring modified camptothecin

The first total synthesis of (±)-17-norcamptothecin, a novel camptothecin analog possessing an α-hydroxy-γ-lactone E-ring, has been accomplished by using a short and flexible route. The stability of this new compound in aqueous medium has been evaluated through fluorescence spectroscopy.

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