Migrastatin and its macrolactone subunit are potent antimetastatic agents. Both were synthesized by using a ring-closing metathesis (RCM) to establish the macrolactone core, and the control of the (Z)-trisubstituted double bond at C11-C12 was achieved by using a Still-Gennari olefination. (C) 2007 Elsevier Ltd. All rights reserved.
(+)-Migrastatin, an antimetastatic agent, was synthesized by using three ruthenium-catalyzed metathesis reactions: a ring-closing metathesis (RCM) to control the (Z)-trisubstituted double bond at C11–C12, another RCM at C6–C7 to establish the macrolactone core, and a cross-metathesis to install the glutarimide side chain at C16–C17. The stereogenic centers at C9, C10, C13, and C14 were introduced by