Total synthesis of (±)-pyrenolide B
✍ Scribed by Morio Asaoka; Satoru Naito; Hisashi Takei
- Book ID
- 104226767
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- French
- Weight
- 200 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
Synthesis of the title compound is described. Recently novel lo-membered keto lactones, pyrenolides A, B, and C, which possess a characteristic Z-diacylated olefin (RCOCH=CHCOOR) moiety, were isolated from pyrenophora teres, and they show interesting antifungal activities. 1)
In this paper we will report the first total synthesis of (+)-pyrenolide B.
📜 SIMILAR VOLUMES
In the synthesis of the title compound 12, the important intermediate 7 was obtained in good yield from the easily available ethyl 5,5-ethylenedioxy-2-oxocyclohexane-1 -carboxylate (1) via ring enlargement of the bicyclic enol ether 5 (Scheme). Its reduction (NaBH,, CeCI, in EtOH) and subsequent pro