A [2+2] Cycloaddition Dimer and a Diels-Alder Adduct from Alpinia katsumadai

作者：Yang, Chang-Shui; Wang, Xiao-Bing; Wang, Jun-Song; Luo, Jian-Guang; Luo, Jun; Kong, Ling-Yi^*

来源：Organic Letters, 2011, 13(13): 3380-3383.

DOI：10.1021/ol201137v

• DIARYLHEPTANOIDS
• SEEDS
• BLEPHAROCALYXINS

An unusual katsumadain dimer via a [2 + 2] cycloaddition, katsumadain C (1), and a unique chalcone-diarylheptanoid adduct via a Diels-Alder reaction, calyxin Y (2) with novel carbon frameworks, were isolated from the seeds of Alpinia katsumadai. Their structures and relative configurations were determined by spectroscopic evidence.

• 出版日期2011-7-1
• 单位中国药科大学