An efficient synthesis of magallanesine using [1,2]-Meisenheimer rearrangement and Heck cyclization
作者:Ryuji Yoneda、Yasuhiko Sakamoto、Yoshifumi Oketo、Shinya Harusawa、Takushi Kurihara
DOI:10.1016/0040-4020(96)00900-3
日期:1996.11
A straightforward total synthesis of magallanesine 1 was accomplished from readily available isoquinolineacetate 14. This synthesis is emphasized by the following two points; i. the [1,2]-Meisenheimer rearrangement of the azetidine N-oxide 22 for the preparation of azocine ring, ii. the Pd-catalyzed intramolecular Heck reaction of N-benzoylenaminone 38 for the construction of isoindoloazocine skeleton
从容易获得的异喹啉乙酸酯14可以直接完成麦加丙氨酸1的总合成。以下两点强调了这一综合。一世。氮杂环丁烷N-氧化物22的[1,2]-迈森海默重排,用于制备偶氮电影环,ii。N-苯甲酰亚氨基酮38的Pd催化的分子内Heck反应用于构建异吲哚并唑啉骨架。