Total synthesis of rupestine G and its epimers.
Total synthesis of rupestine G and its epimers.
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DOI:
10.1098/rsos.172037
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发表时间:
2018-03
影响因子:
3.5
通讯作者:
Huang G
中科院分区:
文献类型:
--
作者:
Yusuf A;Zhao J;Wang B;Aibibula P;Aisa HA;Huang G
Rupestine G is a guaipyridine sesquiterpene alkaloid isolated from Artemisia rupestris L. The total synthesis of rupestine G and its epimers was accomplished employing a Suzuki reaction to build a terminal diene moiety. The diene was further elaborated into the desired guaipyridine structure by a ring-closing metathesis reaction. Over all, rupestine G and its three epimers were obtained as a mixture in a sequence of nine linear steps with 18.9% yield. Rupestine G and its optically pure isomers were isolated by chiral preparative HPLC and fully characterized by 1H ,13C NMR, HRMS, optical rotation value, and experimental and calculated electronic circular dichroism spectroscopy.
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影响因子:
15
作者:
Rosebrugh, Lauren E.;Herbert, Myles B.;Marx, Vanessa M.;Keitz, Benjamin K.;Grubbs, Robert H.
通讯作者:
Grubbs, Robert H.
影响因子:
3.6
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