Synthesis of Isotopically Labeled Fusarium Mycotoxin ¹³C2-Moniliformin [1-Hydroxycyclobut-1-ene-3,4-dione]
作者:Hans-Ulrich Humpf、Lilia Lohrey、Takeshi Murata、Daisuke Uemura
DOI:10.1055/s-0030-1261189
日期:2011.9
13 C 2 ]-1-hydroxycyclobut-1-ene-3,4-dione (moniliformin) a fungal toxic secondary metabolite to be used as internal standard for mycotoxin analysis is described. The synthesis proceeds in four steps starting from 1,4-dioxane, which was converted to 2,3-dihydro-1,4-dioxine followed by a [2+2]-cycloaddition with trichloroacetyl chloride-1,2- 13 C 2 as 13 C source. The 13 C 2 -labeled cyclobutanone precursor
描述了同位素标记的 [ 13 C 2 ]-1-hydroxycyclobut-1-ene-3,4-dione (moniliformin) 的全合成,一种真菌毒性次级代谢物,用作真菌毒素分析的内标。合成分四步进行,从 1,4-二恶烷开始,将其转化为 2,3-二氢-1,4-二恶英,然后与三氯乙酰氯-1,2- 13 C 2 进行 [2+2]-环加成作为 13 C 源。通过酸催化水解将 13 C 2 标记的环丁酮前体转化为[ 13 C 2 ]-moniliformin。对标记的念珠菌素及其前体的详细核磁共振和质谱研究证明了两个 13 C 原子的成功结合。