
handle: 10261/21798
The partial synthesis of an isomer of gibberellic acid meyhyl ester, with a lactone between C-6 and C-10 and an esterified acid group at C-19, is described. The overall yield from gibberellic acid was 46%. The preparation of 6-epi-GA. has also been carried out. Its structure was confirmed by an X-ray analysis of its 1B-iodo derivativo.
We thank Abbott Laboratories, Chicago, USA, for samples of gibberellic acid, and the CICYT, Madrid, for financial support. One of us (E. P.) thanks ·CajaCanarias" for a fellowship.
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