The synthesis of the aromatic segment 4 was achieved starting from commercially available 5-hydroxyisophthalic acid (6) by utilizing Claisen rearrangement of 9, bromolactonization of 12, and modified Curtius rearrangement of 16 as the key steps. Furthermore, the optically active aliphatic segments 5 and ent-5 were synthesized in enantiomerically pure forms starting with natural (2R,3R)- and unnatural
Synthesis of the First Photo-Triggered Pro-mitosene Based on FR-900482
作者:Robert M Williams、Samuel B Rollins、Ted C Judd
DOI:10.1016/s0040-4020(99)01046-7
日期:2000.1
A stereocontrolled synthesis of an eight-membered ring precursor to a photo-triggered mitosene is described. (C) 2000 Elsevier Science Ltd. All rights reserved.