来自贯叶金光菊的山奈酚三糖苷。

Kaempferol triosides from Silphium perfoliatum.

作者信息

el-Sayed Nabil H, Wojcińska Małgorzata, Drost-Karbowska Krystyna, Matławska Irena, Williams Jeffrey, Mabry Tom J

机构信息

National Research Centre, El-Tahrir St., Dokki, Cairo, Egypt.

出版信息

Phytochemistry. 2002 Aug;60(8):835-8. doi: 10.1016/s0031-9422(02)00133-4.

DOI:10.1016/s0031-9422(02)00133-4

PMID:12150809

Abstract

Two apiose-containing kaempferol triosides, together with nine known flavonoids were isolated from the leaves of Silphium perfoliatum L. Their structures were elucidated by acid hydrolysis and spectroscopic methods including UV, LSI MS, FAB MS, CI MS, (1)H, (13)C and 2D-NMR, DEPT, HMQC and HMBC experiments. The two new compounds were identified as kaempferol 3-O-beta-D-apiofuranoside 7-O-alpha-L-rhamnosyl-(1""-->6"')-O-beta-D-galactopyranoside and kaempferol 3-O-beta-D-apiofuranoside 7-O-alpha-L-rhamnosyl-(1''''--> 6"')-O-beta-D (2"'-O-E-caffeoylgalactopyranoside).

摘要

从贯叶金光菊的叶子中分离出了两种含芹糖的山柰酚三糖苷以及九种已知的黄酮类化合物。通过酸水解和光谱方法（包括紫外光谱、低分辨质谱、快原子轰击质谱、化学电离质谱、¹H、¹³C和二维核磁共振、无畸变极化转移增强、异核多量子相干和异核多键相关实验）阐明了它们的结构。这两种新化合物被鉴定为山柰酚3 - O - β - D - 芹糖呋喃糖苷7 - O - α - L - 鼠李糖基 -（1″→6′）- O - β - D - 吡喃半乳糖苷和山柰酚3 - O - β - D - 芹糖呋喃糖苷7 - O - α - L - 鼠李糖基 -（1″→6′）- O - β - D -（2′- O - E - 咖啡酰吡喃半乳糖苷）。