Syntheses of two possible diastereoisomers of the epoxy lactone proposed for an annonaceous acetogenin, epoxyrollin A
作者:Hiroyuki Konno、Hidefumi Makabe、Takayuki Oritani、Akira Tanaka
DOI:10.1016/0040-4020(96)00477-2
日期:1996.7
Syntheses of two possible diastereoisomers (5S, 18′S, 19′R)- and (5S, 18′R, 19′S)-1 corresponding to the epoxy lactone that has been proposed for epoxyrollin A, a structural representative of biosynthetic precursors of tetrahydrofuran annonaceous acetogenins, are described. The 13C-NMR and tandem mass spectral data of the synthetic samples were not in accord with those recorded for natural epoxyrollin
的两种可能的非对映体(5合成小号,18'小号,19' - [R和(5 - )小号,18' - [R,19'小号已经提出的用于epoxyrollin A)-1对应于环氧内酯的结构代表描述了四氢呋喃非乙酰乙酸原素的生物合成前体。合成样品的13 C-NMR和串联质谱数据与天然环氧树胶A记录的数据不一致。因此,环氧树胶A的结构需要修改。