Synthesis and pharmacological evaluation of second-generation phosphatidic acid derivatives as lysophosphatidic acid receptor ligands
作者:Gangadhar G. Durgam、Ryoko Tsukahara、Natalia Makarova、Michelle D. Walker、Yuko Fujiwara、Kathryn R. Pigg、Daniel L. Baker、Vineet M. Sardar、Abby L. Parrill、Gabor Tigyi、Duane D. Miller
DOI:10.1016/j.bmcl.2005.10.031
日期:2006.2
pyrophosphate (DGPP 8:0, 1) and phosphatidic acid 8:0 (PA 8:0, 2), were previously identified as subtype-selective LPA(1) and LPA(3) receptor antagonists. Recently, we reported that the replacement of the phosphate headgroup by thiophosphate in a series of fatty alcohol phosphates (FAP) improves agonist as well as antagonist activities at LPA GPCR. Here, we report the synthesis of stereoisomers of PA 8:0 analogs
短链磷脂酸衍生物,焦磷酸二辛酯甘油酯(DGPP 8:0,1)和磷脂酸8:0(PA 8:0,2)先前被确定为亚型选择性LPA(1)和LPA(3)受体拮抗剂。最近,我们报道了在一系列脂肪醇磷酸酯(FAP)中用硫代磷酸酯取代磷酸根基可以改善LPA GPCR的激动剂和拮抗剂活性。在这里,我们报告PA 8:0类似物的立体异构体的合成及其在LPA GPCR,PPARgamma和ATX的生物学评估。结果表明,LPA受体与甘油骨架修饰的配体立体选择性地相互作用。我们观察到由二辛基PA 8:0化合物产生的完全立体定向反应,其中(R)异构体是激动剂,(S)异构体是LPA GPCR的拮抗剂。从这个系列中 我们将化合物13b确定为最有效的LPA(3)受体亚型选择性激动剂(EC(50)= 3 nM),将8b确定为有效和选择性的LPA(3)受体拮抗剂(K(i)= 5 nM)和ATX抑制剂(IC(50)= 600 nM