First Asymmetric Total Synthesis of (−)-Antofine by Using an Enantioselective Catalytic Phase Transfer Alkylation
作者:Sanghee Kim、Jaekwang Lee、Taeho Lee、Hyeung-geun Park、Deukjoon Kim
DOI:10.1021/ol0349007
日期:2003.7.1
[structure: see text] The first asymmetric total synthesis of a potential antitumor phenanthroindolizidine alkaloid, (-)-antofine, is described. An important feature of this synthesis is the creation of a stereogenic center by using enantioselective catalytic phase transfer alkylation, affording an unnatural alpha-amino acid derivative, together with a ring closing metathesis for pyrrolidine ring construction
[结构:见正文]描述了潜在的抗肿瘤菲咯啉吲哚并立生物碱(-)-安托菲因的第一个不对称全合成。该合成的重要特征是通过使用对映选择性催化相转移烷基化产生立体异构中心,提供非天然的α-氨基酸衍生物,以及用于吡咯烷环构造的闭环易位。