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Total synthesis of pamamycin-607

✍ Scribed by Yuzhou Wang; Heiko Bernsmann; Margit Gruner; Peter Metz


Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
74 KB
Volume
42
Category
Article
ISSN
0040-4039

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✦ Synopsis


The macrodiolide antibiotic pamamycin-607 has been synthesized by coupling of the two hydroxy acid constituents using the Yamaguchi method. While the final lactonization with formation of the ester linkage between C(1) and the C(8%) oxygen proceeded with complete C(2) epimerization, the alternative ring closure involving the carboxylic acid of the smaller fragment and the hydroxyl group of the larger fragment yielded the target molecule.


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