Chiral syntheses of edulans I, II and dihydroedulans I, II and absolute configurations of edulans I, II
β Scribed by Toshio Honda; Akira Yamauchi; Masayoshi Tsubuki; Takeshi Matsumoto
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 187 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0957-4166
No coin nor oath required. For personal study only.
β¦ Synopsis
Enantiospecific syntheses of (+)-and (-)-edulans I, II and (-)-dihydroedulans I, II, starting from (R)-and (S)-3-hydroxybutyric acid methyl esters, allowed the determination of the absolute configurations of edulans I, II.
π SIMILAR VOLUMES
pu-t o f project No. SR 2.120.0!, ctf the Schweizerischer Nak~oitalfonds. Financial .4-GEIGY S.A., Easel, is gratefully aclinowlctlgcd. Finally we wish t o thank S A A ~D O Z AG fur t h e gift of computer time. :Ippendix. Table 4 lists t h c analysis of the vilrational fine structure ol ba~icls &,
efficient synthesis of chettaphanin I and II has been achieved from ent-halimic acid. The absolute configuration of the natural products was established by nOe experiment and by X-ray analysis of chettaphanin II.