Bioinspired Synthesis of the Central Core of Halichonadin H: The Passerini Reaction in a Hypothetical Biosynthesis of Marine Natural Products

Autor: Seijiro Hosokawa, Yutaro Udagawa, Toshiki Yamasaki, Yoshiyasu Ichikawa, Toshiya Masuda, Keisuke Nakanishi
Rok vydání: 2019
Předmět:
Zdroj: Synthesis. 51:2305-2310
ISSN: 1437-210X
0039-7881
DOI: 10.1055/s-0037-1610867
Popis: A pathway is proposed for the biosynthesis of the unique homodimeric terpene, halichonadin H. The proposed biosynthetic pathway involves two key Passerini reactions of eudesmane-type terpene isocyanides. The Passerini reaction of a model terpene isocyanide and formaldehyde afforded an α-hydroxy acetamide, which was further subjected to oxidation and a second Passerini reaction. This reaction sequence furnished an α-hydroxy malonamide connected with two identical terpene units which is the identical structural motif found in halichonadin H.
Databáze: OpenAIRE