Synthesis and absolute configuration assignments of enantiomeric forms of ifosphamide, sulfosphamide, and trofosphamide
作者:K. Pankiewicz、R. Kinas、W. J. Stec、A. B. Foster、M. Jarman、Jan M. S. Van Maanen
DOI:10.1021/ja00520a015
日期:1979.12
Stereoselective synthesis of both enantiomers of P-chirogenic 2-oxo-2-thio-1,3,2-oxazaphosphorinane tetramethylammonium salt as key precursors to structurally diverse chiral derivatives
作者:Marian Mikołajczyk、Jerzy Łuczak、Lesław Sieroń、Michał W. Wieczorek
DOI:10.1016/j.tet.2011.10.085
日期:2012.1
A fully stereoselective synthesis of both enantiomers of 2-oxo-2-thio-1,3,2-oxazaphosphorinanyl salt has been accomplished in five steps with an overall 40–45% yield starting from the diastereoisomeric N-methylstrychninium salts of methyl p-nitrophenyl phosphorothioic acid. Their conversion to the enantiomeric forms of methyl p-nitrophenyl phosphorochloridothionate as a two-step phosphorylating agent