甲醇 、 ledol A 以
甲酸 为溶剂,
反应 5.0h,
以89%的产率得到6-(1-methoxyethyl)-5,7,8-trimethoxy-2,2-dimethyl-2H-1-benzopyran
参考文献:
名称:
Two chromenes from evodia lepta
摘要:
Two new chromenes named, leptonol and methylleptol A, along with four known compounds, alloevodione, 7, 4-dihydroxy-3, 5, 3'-trimethoxyflavone, 3, 7-dimethylkaempferol and clovandiol, have been isolated from Evodia lepta. Their structures were elucidated by spectroscopic analysis and chemical techniques. (C) 1998 Elsevier Science Ltd. All rights reserved.