(3aR,4R,5R,6aS)-4-formyl-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate → (1S,5R,6R,7R)-7-Benzoyloxy-6-[(E)-(4RS) 4-methyl-3-oxonon-1-en-7-inyl]-2-oxabicyclo[3,3,0]octan-3-one

Beteiligte Stoffe

Reaktionsschritte

Analogously to Example 1(g), 7.4 g of the title compound was synthesized from 5.4 g of 3-methyl-2-oxooct-6-inylphosphonic acid dimethyl ester and 6 g of (1S,5R,6R,7R)-6-formyl-7-benzoyloxy-2-oxabicyclo[3,3,0]-octan-3-one [E. J. Corey et al., J. Amer. Chem. Soc. 91: 5675 (1969)].

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