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The ginkgolides. III. The structure of the ginkgolides

✍ Scribed by M. Maruyama; A. Terahara; Y. Nakadaira; M. C. Woods; K. Nakanishi

Publisher
Elsevier Science
Year
1967
Tongue
French
Weight
237 KB
Volume
8
Category
Article
ISSN
0040-4039

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## Abstract By hydrogenation of 3,14‐didehydro‐10‐hydroxyginkgolide (3,14‐anhydroginkgolide A, 1) the 3,14‐didehydro‐10‐hydroxyginkgolide‐15‐acid (2) was obtained. Reaction with diazomethane led to the methyl ester 2a, which was transformed into its MOM derivative 2b. Ozonolysis of 2b gave a stable