Tetrahedron Letters p. 2719 - 2722 (1991)
Update date:2022-08-03
Topics:
Hanessian, Stephen
Chemla, Philippe
The conversion of avermectin B1a into 19-epi-avermectin A1a was accomplished by an intramolecular Mitsunobu reaction of a Δ2-conjugated seco acid with inversion of configuration, followed by a stereocontrolled deconjugation.
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