Synthesis of 6-Heterocyclically Appended Tri- O -methyl Protected 6-Desmethyl Emodin Derivatives
作者:Tarek A. Salama、Bernd Lackner、Heinz Falk
DOI:10.1007/s00706-003-0151-9
日期:2004.6.1
A convenient synthesis of several 6-heterocyclically appended tri- O -methyl 6-desmethyl emodin derivatives including the tetrazolyl, oxazolyl, oxazolinyl, benzimidazolyl, benzoxazolyl, and benzothiazolyl derivatives of potential biological and medicinal interest was achieved starting from the tri- O -methyl protected emodin aldehyde or nitrile. In addition, these derivatives could serve as synthons