Novel transannular rearrangements of azalide iminoethers
作者:Robert R. Wilkening、Ronald W. Ratcliffe、George A. Doss、Ralph T. Mosley、Richard G. Ball
DOI:10.1016/s0040-4020(97)10172-7
日期:1997.12
The transannular reactions between the aglycone hydroxyl groups and the iminoether and lactone groups of the 9a- and 8a-azalide iminoethers 4 and 5 were investigated under a variety of conditions. Translactonization by the 11-hydroxyl groups of 4 and 5 were found to give the corresponding 13-membered iminoethers 21 and 9. The thermal rearrangement of 4 produced an epimeric mixture of the 9,11-iminoethers