Total Synthesis and Stereochemical Reassignment of (+)-Dolastatin 19
作者:Ian Paterson、Alison D. Findlay、Gordon J. Florence
DOI:10.1021/ol060609q
日期:2006.5.1
configurational assignment for the cytotoxic marine macrolide dolastatin 19 is proposed and validated by total synthesis. Key features of the route include an asymmetric vinylogous aldol reaction to install the isolated C13 stereocenter and (E)-trisubstituted alkene, two sequential 1,4-syn boron-mediated aldol reactions, and a Mukaiyama glycosylation to append the l-rhamnose-derived pyranoside.
Total synthesis and stereochemical reassignment of (+)-dolastatin 19, a cytotoxic marine macrolide isolated from Dolabella auricularia
作者:Ian Paterson、Alison D. Findlay、Gordon J. Florence
DOI:10.1016/j.tet.2007.01.048
日期:2007.6
the cytotoxic marine macrolide dolastatin 19 is proposed, together with its validation by completion of the first total synthesis. Key features of the highly stereocontrolled route include an asymmetric vinylogous Mukaiyama aldol reaction to simultaneously install both the remote C13 stereocenter and the C10–C11 (E)-trisubstituted olefin, two sequential 1,4-syn boron-mediated aldol reactions, and a late-stage