Tetrahedron p. 4575 - 4584 (1988)
Update date:2022-08-05
Topics:
Gonzalez, Antonio G.
Galindo, Antonio
Afonso, M. Mar
Mansilla, Horacio
Palenzuela, J.A.
et al.
1-epigallicin 11 underwent biomimetic cyclization to trans-(1β-H,5α-H)-guaianolide 22, the stereoespecificity of this cyclization being credited to the fact that it took place via the reacting TC conformation 27.The epimeric nor-guaianolides 15 and 17 were prepared and their rearrangements studied.The biogenetic implications of these processes are discussed.
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