Catalytic, Enantioselective Formal Synthesis of Monoterpene Indole Alkaloid (-)-Alstoscholarine
Catalytic, Enantioselective Formal Synthesis of Monoterpene Indole Alkaloid (-)-Alstoscholarine
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单萜吲哚生物碱 (-)-Alstoscholarine 的催化、对映选择性形式合成
DOI:
10.1021/acs.orglett.9b03319
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发表时间:
2019
期刊:
影响因子:
5.2
通讯作者:
Yang Yu-Rong
中科院分区:
文献类型:
--
作者:
Yao Jian-Neng;Liang Xiao;Wei Kun;Yang Yu-Rong
A catalytic, enantioselective formal synthesis of monoterpene indole alkaloid (−)-alstoscholarine is described. The synthesis employs an Ir-amine dual catalyzed asymmetric allylation of aldehyde8with 3-indolyl vinyl carbinol derivative7to furnish chiral aldehyde6as a key asymmetric step. Other key reactions include the construction of the 2-ketopyrrole moiety by Nicolaou’s method and Tf2O promoted Pictet–Spengler cyclization to access Zhu’s intermediate3.