Reverse polarity C-glycosidation and benzannulation of Fischer carbene as key steps for total synthesis of ravidomycin

ORGN 517

Fei You, fy8n@virginia.edu, Department of Chemistry, Brown University, Providence, RI 02912 and Kathlyn A Parker, Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794.
Ravidomycin is an aryl C-glycoside with a complex structure and reported antitumor activity.  Benzannulation of an appropriately substituted chromium carbene  provides the complete carbon skeleton in an advanced model for the key step of the total synthesis.