A two-step synthesis of the bioprotective agent JP4-039 from N-Boc-l-leucinal
作者:Barbara Bernardim、Antonio C.B. Burtoloso
DOI:10.1016/j.tet.2013.10.059
日期:2014.5
An expedited synthesis of the bioprotective agent JP4-039 is described from N-Boc-l-leucinal in 50% overall yield. The synthesisinvolves the use of an α,β-unsaturated diazoketone as the key intermediate, followed by a photochemical Wolff rearrangement in the presence of 4-amino-TEMPO (4-AT).