J . Org. Chem., Vol. 43, No. 6, 1978 1031
Gibberellins the excess solvent was removed under reduced pressure to give 0.41 g of 18 as a light brown oil (>95% pure by GLC). An analysis of the carbonyl region of the I3C NMR spectrum of the crude product revealed it to be a mixture (ca. 1:l) of the C-1 epimers (6 219.03 and 217.67), together with another minor, unidentified component (