Synthesis of Triple-Bond-Containing 1-Hydroxy-1,1-bisphosphonic Acid Derivatives To Be Used as Precursors in “Click” Chemistry: Two Examples
作者:Petri A. Turhanen
DOI:10.1021/jo500831r
日期:2014.7.3
to many kinds of molecules containing azide (−N3) functionalities using a “click” chemistry approach. As an example, bisphosphonate trimethyl ester 3a and P,P′-dimethyl ester 2b were attached to triethylene glycol to form triethylene glycol–bisphosphonate conjugates 4 and 5 as model compounds for further studies in, for example, nanoparticle targeting.
type cycloaddition was studied starting from an HBP-functionalized alkyne partner to obtain the targeted bifunctional molecule. These complementary approaches allow for the preparation of complex bone-targeting molecules as potential prodrug candidates. The synthesis of two bifunctionalcompounds bearing a terminal hydroxy-bisphosphonic function (HBP) was achieved following a linear and a convergent