Synthesis of the marine dibromooxoindoline convolutamydine C
作者:Soyfur Miah、Christopher J. Moody、Ian C. Richards、Alexandra M. Z. Slawin
DOI:10.1039/a700683g
日期:——
A synthesis of the marine 4,6-dibromo-3-hydroxyoxoindoline
convolutamydine C 3 is described. The key steps are the rhodium(II)
perfluorobutyramide catalysed cyclisation of diazoamide 17 to give the
oxoindoline 18, and the subsequent high yielding one-pot
hydrolysis–decarboxylation–oxidation of 19 to 20. X-Ray
crystal structures have been determined for the diazoamides 10 and 17
and for the oxoindolines 11 and 13.