In the presence of titanium tetrachloride and an organic base in tetrahydrofurane, triethyl phosphonoacetic acid undergoes condensation with aliphatic and aromatic aldehydes and aromatic ketones to yield the corresponding triethyl alkylidene and arylidene phosphonoacetic acids respectively. Tetraalkyl methylenediphosphonates and aromatic or aliphatic α-branched aldehydes react under identical conditions
Design, synthesis and P-gp induction activity of aryl phosphonate esters: identification of tetraethyl-2-phenylethene-1,1-diyldiphosphonate as an orally bioavailable P-gp inducer
作者:Sudhakar Manda、Abubakar Wani、Sonali S. Bharate、Ram A. Vishwakarma、Ajay Kumar、Sandip B. Bharate
DOI:10.1039/c6md00300a
日期:——
considered as a potential therapeutic strategy for the treatment of Alzheimer's disease. The expression of P-gp is regulated through a nuclear receptor, pregnane X receptor (PXR). Thus, herein we investigated the potential of a known PXR activator, diphosphonate ester SR12813 (6a), for P-gp induction activity and further studied its structure–activity relationship. The diphosphonate ester SR12813 along