An efficient total synthesis of (±)-xanthocidin, a complex and unstable cyclopentanoid antibiotic, is described. The success of the key cyclopentannelation step suggests much greater versatility for the general version of this reaction.
Total synthesis of (±)-xanthocidin using FeCl3-mediated Nazarov reaction
作者:Kentaro Yaji、Mitsuru Shindo
DOI:10.1016/j.tet.2010.10.084
日期:2010.12
The total synthesis of the antibiotic, (±)-xanthocidin (1), is described. The FeCl3-promoted fast Nazarov reaction of the β-alkoxy divinyl ketone in the presence of t-BuOH provided the α-exo-methylene cyclopentenone, which is the core skeleton of this natural product. After methoxymethyl (MOM) esterification and protection of the reactive exo-methylene unit with a phenylseleno group, dihydroxylation
Total synthesis of (±)-xanthocidin and (±)-desdihydroxy-4,5-dihydroxanthocidin
作者:Diane Boschelli、Amos B. Smith
DOI:10.1016/s0040-4039(01)82006-2
日期:1981.1
The first total synthesis of both (±)-xanthocidin (1), a novel α-methylene cyolopentanoid antibiotic, and (±)-desdihydroxy-4,5-dihydpoxanthocidin (2), the likely penultimate biosynthetic precursor is reported.
Mori, Kenji; Horinaka, Akio; Kido, Masaru, Liebigs Annalen der Chemie, 1994, # 8, p. 817 - 826
作者:Mori, Kenji、Horinaka, Akio、Kido, Masaru
DOI:——
日期:——
Stereocontrolled total synthesis of (.+-.)-xanthocidin, two diastereomers, (.+-.)-epixanthocidin and (.+-.)-.beta.-isoxanthocidin, and (.+-.)-dedihydroxy-4,5-didehydroxanthocidin, a likely biosynthetic precursor