TWO NEW GERMACRANOLIDES FROM MAGNOLIA GRANDIFLORA

• 来源期刊: 亚洲天然物产研究（英文版）
• 学科: 生物学
• 关键词: Magnolia grandiflora Linn. Magnoliaceae Sesquiterpenoids Germacranolides
• 年，卷（期）: 2001,（2）
• 页码范围: 95-102
• 页数: 8页
• 分类号: Q94
• 语种: 英文

摘要

Two new sesquiterpenoids, 4,5-epoxy-13-methoxy-l(10)-germacren-12,6-olide and 4,5-epoxy 13-acetoxy-l(10)-germacren-12,6-olide, were isolated from the leaves of Magnolia grandiflora together with six known compounds, 2α-hydroxy-dihydroparthenolide, parthenolide, cos tunolide, syringaresinol, (+) medioresinol and 6,7-dimethoxycoumarin. The structures of the new compounds were elucidated on the basis of spectroscopic methods and X-ray diffraction.