Alves Harley da Silva, Rocha Wilma Raianny Vieira da, Braz-Filho Raimundo, Chaves Maria Célia de Oliveira
Department of Pharmacy/Post-Graduation Program in Pharmaceutical Sciences, State University of Paraíba, 58429-500 Campina Grande-PB, Brazil.
Chemical Science Laboratory, CCT, State University of Fluminense North Darcy Ribeiro, 28013-600 Campo dos Goytacazes-RJ, Brazil.
Molecules. 2017 Jun 9;22(6):874. doi: 10.3390/molecules22060874.
Four new compounds were isolated from the branches of Yuncker, a shrub found in the Amazon rainforest, including two new dihydrochalcones named claricine () and maisine (), a cinnamic acid derivative and a phenylalkanoid , along with a porphyrin identified as the known compound phaeophytin a (). The structures were established using spectroscopic experiments, including 1D and 2D NMR and HRESIMS experiments, performed on the two monoterpene dihydrochalcones and their monoacetyl derivatives. The structural diversity of these substances is very important for the genus chemotaxonomy.
从云克（Yuncker）的树枝中分离出四种新化合物，云克是一种生长在亚马逊雨林中的灌木，其中包括两种名为克拉瑞辛（claricine ）和麦辛（maisine ）的新二氢查耳酮、一种肉桂酸衍生物和一种苯丙素类化合物，以及一种被鉴定为已知化合物脱镁叶绿素a（phaeophytin a ）的卟啉。通过对两种单萜二氢查耳酮及其单乙酰衍生物进行的光谱实验（包括一维和二维核磁共振以及高分辨电喷雾电离质谱实验）确定了这些化合物的结构。这些物质的结构多样性对该属的化学分类学非常重要。
