Synthetic studies on breviones: Construction of the CDE ring system
H Takikawa, M Hirooka, M Sasaki
Index: Takikawa, Hirosato; Hirooka, Manabu; Sasaki, Mitsuru Tetrahedron Letters, 2002 , vol. 43, # 9 p. 1713 - 1716
Full Text: HTML
Citation Number: 18
Abstract
Breviones A–E (1–5), allelopathic agents isolated from Penicillium brevicompactum Dierckx, are structurally unique pentacyclic or hexacyclic diterpenoid derivatives. The synthesis of a structurally simplified model compound (8), corresponding to the characteristic spiro-fused CDE ring portion of 1–4, was accomplished by employing sequential, double nucleophilic substitution reactions as the key steps.
Related Articles:
π-Facial Diastereoselectivity in the [4+ 2] Cycloaddition of Singlet Oxygen as a Mechanistic Probe
[Ohloff Justus Liebigs Annalen der Chemie, 1959 , vol. 627, p. 79,91]
Synthesis and characterization of chromium (III) chelates of some lawsones
[Uzarewicz; Dresler; Scianowski Polish Journal of Chemistry, 1998 , vol. 72, # 4 p. 710 - 718]