Enantioselective synthesis of (+)-(S)-β-angelica lactone from L-tartaric acid
作者:R.M. Ortuño、D. Alonso、J. Font
DOI:10.1016/s0040-4039(86)80053-3
日期:1986.1
Enantiomeric β-angelica lactone epoxides: their syntheses from suitable chiral precursors and their use in the preparation of blastmycinone
作者:Rosa M. Ortuño、Daniel Alonso、Jaume Cardellach、Josep Font
DOI:10.1016/s0040-4020(01)86801-0
日期:1987.1
Syntheses of (S)-β-angelica lactone from L-tartaric acid and (R)-γ-hydroxy-methyl-γ-butyrolactone, 5, are reported. Alternative routes to prepare 5 from S- and R-glutamic acids and D-ribonolactone, respectively, are also presented. Epoxides derived from (R)- and (S)-β-angelica lactones have been obtained and their use in the synthesis of both (+)- and (-)-blastmycinone, 24, has been established.
Total Synthesis of Bryostatin 7 <i>via</i> C–C Bond-Forming Hydrogenation
作者:Yu Lu、Sang Kook Woo、Michael J. Krische
DOI:10.1021/ja205673e
日期:2011.9.7
The marine macrolide bryostatin7 is prepared in 20 steps (longest linear sequence) and 36 total steps with five C-C bonds formed using hydrogenative methods. This approach represents the most concise synthesis of any bryostatin reported, to date.
海洋大环内酯苔藓抑素 7 分 20 个步骤(最长线性序列)和 36 个总步骤制备,使用氢化方法形成五个 CC 键。这种方法代表了迄今为止报道的任何苔藓抑素的最简洁的合成。