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Journal: Molecules, 2007
Volume: 12
Page(s): 2507-2514
Article:
Synthesis and Molecular Structure of Ethyl [N-tosyl-(R)-prolyloxy]-2(S)-[4-cyano-8,8-ethylenedioxy-5-oxo-5,6,7,8-tetrahydroindolizin-3-yl] Acetate, a Key Intermediate in the Total Synthesis of (20S)-Camptothecins
Kuang, Y.-Y.; Chen, F.-E.
http://www.mdpi.com/1420-3049/12/11/2507
