Hydrangeamines A and B, novel polyketide-type pseudoalkaloid-coupled secoiridoid glycosides from the flowers of Hydrangea macrophylla var. thunbergii
Hydrangeamines A and B, novel polyketide-type pseudoalkaloid-coupled secoiridoid glycosides from the flowers of Hydrangea macrophylla var. thunbergii
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DOI：
10.1016/j.tetlet.2012.10.052
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发表时间：
2013-01-02
影响因子：
1.8
通讯作者：
Yoshikawa, Masayuki
中科院分区：
文献类型：
--
作者：
Liu, Jiang;Nakamura, Seikou;Yoshikawa, Masayuki
从中国植物绣球（Hydrangea macrophylla Seringe var.）的花中分离得到两个新的含吡啶环的开环环烯醚萜苷，命名为绣球胺A和B。ThunberbertumMAKINO（虎耳草科）。通过化学和物理化学分析，包括圆二色谱法对4，5-二氢-[6 H]-吡喃生色团的分析，确定了这两个化合物的绝对立体结构。这是第一次分离独特的聚酮型假环烯醚萜偶联开环环烯醚萜苷。(C)2012爱思唯尔有限公司版权所有。
Two novel secoiridoid glycosides with a pyridine ring named hydrangeamines A and B have been isolated from the flowers of Hydrangea macrophylla SERINGE var. thunbergii MAKINO (Saxifragaceae). The absolute stereostructures of the two hydrangeamines were characterized on the basis of chemical and physio-chemical analyses, which included the application of CD for the 4,5-dihydro-[6H]-pyrano chromophore. This is the first isolation of the unique polyketide-type pseudoalkaloid-coupled secoiridoid glycosides. (C) 2012 Elsevier Ltd. All rights reserved.