Seca A M, Silva A M, Silvestre A J, Cavaleiro J A, Domingues F M, Pascoal-Neto C
Department of Chemistry, University of Aveiro, Portugal.
Phytochemistry. 2001 Apr;56(7):759-67. doi: 10.1016/s0031-9422(00)00473-8.
Four lignans, boehmenan H [2-(4-hydroxy-3-methoxyphenyl)-5-[3-(4-hydroxy-3-methoxycinnamoyloxy)propyl]-3-hydroxymethyl-7-methoxybenzodihydrofuran], boehmenan K [2-(4-hydroxy-3-methoxyphenyl)-5-[3-(4-hydroxycinnamoyloxy)-1-propenyl]-3-(4-hydroxy-3-methoxycinnamoyloxymethyl)-7-methoxybenzodihydrofuran], threo-carolignan H [threo-1-(4-hydroxy-3-methoxyphenyl)-2-[4-[3-(4-hydroxy-3-methoxycinnamoyloxy)propyl]-2-methoxyphenoxy]-1,3-propanodiol], and threo-carolignan K [threo-1-(4-hydroxy-3-methoxyphenyl)-3-(4-hydroxy-3-methoxycinnamoyloxy)-2-[4-[3-(4-hydroxycinnamoyloxy)-1-propenyl]-2-methoxyphenoxy]-1-propanol] as well as several other lignans, aldehydes and a tyramine derivative were isolated from the acetone extract of core of kenaf (Hibiscus cannabinus). All the structures were established by spectroscopic methods. The hitherto unreported 13C NMR spectra of some compounds are also presented and discussed. 2D NMR techniques have allowed the revision of certain previously reported 13C NMR assignments of some scarce naturally occurring compounds.
从洋麻（芙蓉属大麻槿）茎芯的丙酮提取物中分离出了四种木脂素，即波希木脂素H [2-(4-羟基-3-甲氧基苯基)-5-[3-(4-羟基-3-甲氧基肉桂酰氧基)丙基]-3-羟甲基-7-甲氧基苯并二氢呋喃]、波希木脂素K [2-(4-羟基-3-甲氧基苯基)-5-[3-(4-羟基肉桂酰氧基)-1-丙烯基]-3-(4-羟基-3-甲氧基肉桂酰氧基甲基)-7-甲氧基苯并二氢呋喃]、苏式卡罗木脂素H [苏式-1-(4-羟基-3-甲氧基苯基)-2-[4-[3-(4-羟基-3-甲氧基肉桂酰氧基)丙基]-2-甲氧基苯氧基]-1,3-丙二醇]和苏式卡罗木脂素K [苏式-1-(4-羟基-3-甲氧基苯基)-3-(4-羟基-3-甲氧基肉桂酰氧基)-2-[4-[3-(4-羟基肉桂酰氧基)-1-丙烯基]-2-甲氧基苯氧基]-1-丙醇]，以及其他几种木脂素、醛类和一种酪胺衍生物。所有结构均通过光谱方法确定。还给出并讨论了一些化合物迄今未报道的13C NMR谱。二维NMR技术对一些稀有天然化合物先前报道的某些13C NMR归属进行了修正。
