Ja. Lafontaine et Jw. Leahy, RHIZOXIN SYNTHETIC STUDIES .1. SYNTHESIS OF THE RIGHT-HAND [C(1) TO C(9)] PORTION VIA A PINWHEEL APPROACH, Tetrahedron letters, 36(34), 1995, pp. 6029-6032
A concise synthetic approach to the C(1) C(9) fragment of the antitumo
r macrolide rhizoxin via a three-fold pseudosymmetric intermediate is
described. The preparation (from readily available gamma-butyrolactone
) includes both an asymmetric allylation and an asymmetric aldol addit
ion. The pseudosymmetry proved useful in the realization of the target
(4).