Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5216441 | Tetrahedron | 2014 | 5 Pages |
Abstract
Two new alkaloids, longphyllinesides A (1) and B (2), were isolated from Daphniphyllum longeracemosum. Their structures were elucidated using 1DÂ and 2D NMR spectra. The key step in their biogenetic pathway is indicated to be Diels-Alder cycloaddition via asynchronous concerted mechanism by density functional theory calculations. The possibility of involvement of a Diels-Alderase is also discussed.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Ying-Tong Di, Chorng-Shin Wee, Chun-Shun Li, Ning-Chuan Kong, Jun-Song Wang, Xin Fang, Hua-Jie Zhu, Yun-Dong Wu, Xiao-Jiang Hao,