Stereoselective Synthesis of Tilivalline<sup>1</sup>
作者:Tatsuo Nagasaka、Yuji Koseki
DOI:10.1021/jo972158g
日期:1998.10.1
Tilivalline 1, a metabolite from Klebsiella pneumoniae var. ocytoca, was easily synthesized in five steps from (S)-proline and 3-(benzyloxy)isatoic anhydride 4g. This synthesis is based on modified Curtius reactions of 3-substituted phthalic anhydrides 11 to 3-substituted isatoic anhydrides 4, conversion of lactams 6 to the acyliminium precursors 7 and stereoselective introduction of indole from the less hindered side of 7.
NAGASAKA, TATSUO;KOSEKI, YUJI;HAMAGUCHI, FUMIKO, TETRAHEDRON LETT., 30,(1989) N4, C. 1871-1872