1997 alkaloids

alkaloidsU 0600

42 - 265Free Radical Cyclizations in Alkaloid Total Synthesis: (±)-21- Ox-ogelsemine and (±)-Gelsemine. — The key steps in the synthesisof the title compounds (XV) and (XVI) are radical cyclizations of the thioderivative (VI) and the carboxanilide (XI) and isomerization-cyclization of thealdehyde (XIII) . — (ATARASHI, S.; CHOI, J.-K.; HA, D.-C.; HART, D. J.;KUZMICH, D.; LEE, C.-S.; RAMESH, S.; WU, S. C.; J. Am. Chem. Soc. 119(1997) 27, 6226-6241; Dep. Chem., Ohio State Univ., Columbus, OH 43210,USA; EN)

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1997 alkaloids

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