Synthesis of mixed phosphonate diester analogues of dipeptides using BOP or PyBOP reagents
作者:Jean-Marc Campagne、Jacques Coste、Patrick Jouin
DOI:10.1016/s0040-4039(00)61690-8
日期:1993.10
Mixed phosphonate diesters of a N-protected α-amino phosphonic acid are prepared from phosphonatemonoestersusing BOP or PyBOP as activating agent. This reaction proceeds without racemisation.
structure of haptens and the esterolytic activities of antibodies was investigated. We synthesized two phenylalanine analogs, the negatively charged phosphonatederivative 1 and the neutral phosphonamidate derivative 2. Seventeen out of 41 monoclonal antibodies generated against the hapten 1 hydrolyzed the relevant phenylalanine ester R-12. On the contrary, none of 27 monoclonal antibodies generated against
Oxalyl chloride-mediated preparation of phosphonochloridates allowed the improvement of the synthesis of phosphonamidate peptides, particularly if AgCN was used as catalyst or upon conversion of the chloridate into the 7-aza-1-hydroxybenzotriazole ester.
GIANNOUSIS, PETER P.;BARTLETT, PAUL A., J. MED. CHEM., 30,(1987) N 9, 1603-1609