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Synthesis of a C16–C28 spiroacetal fragment of avermectin B1a and reassignment of some 1H and 13C resonances of avermectin B1a

✍ Scribed by David Diez-Martin; Peter Grice; Hartmuth C. Kolb; Steven V. Ley; Andrew Madin

Publisher
Elsevier Science
Year
1990
Tongue
French
Weight
235 KB
Volume
31
Category
Article
ISSN
0040-4039

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✦ Synopsis

A new method for the synthesis of unsaturated spiroacetals from 2-benzenesulphonyltetmhydropyrans is presented IH and 13C studies of one of these spiroacetals led to a reassignment of some 1H and 13C resonances of Avermectin B la.

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