99519-06-9Relevant academic research and scientific papers
Syntheses of 2,6-anhydro-3-deoxy-5-O-phosphono-3-tetradecanamido-4-O- [(R)-3-(tetradecanoyloxy)tetradecanoyl]-D-glycero-D-ido-heptonic acid, its dimeric analogue, and related compounds
Shiozaki, Masao,Kurakata, Shin-Ichi,Tatsuta, Tohru,Maeda, Hiroaki,Nishijima, Masahiro
, p. 16041 - 16060 (2007/10/03)
Pyran carboxylic acid analogues of GLA-60 (12a, 12b, and 17) and their dimeric analogues (21 and 24) were synthesized in a stereocontrolled manner. Compounds 12a and 17 showed endotoxin antagonistic activity toward human monoblastic U937 cells as an index of the inhibition of LPS-induced TNFα production. Compounds 12b and 24 were less active than 12a and 17, Dimeric ester 21 was practically inactive.
The first syntheses of GLA-60 positional isomers and their biological activities
Shiozaki,Arai,Macindoe,Mochizuki,Wakabayashi,Kurakata,Tatsuta,Maeda,Nishijima
, p. 1149 - 1161 (2007/10/03)
Six GLA-60 positional isomers (8, 14, 14', 20, 26, and 26') were synthesized to investigate their biological activities. Compound 8 exhibited potent agonistic activity, while compounds 26 and 26' exhibited slight agonistic activity on TNFα production toward human monoblastic U937 cells. TNFα production (% control; 10 ng ml- of LPS = 100) of compound 8 in the concentration of 10 μM was 611, and that of lipid A in the same concentration was 651. In contrast, the difluorinated compounds 14, 14', and 20 showed little agonistic activity on TNFα production. And neither compound 8 nor compounds 26 and 26' showed antagonistic activity. On the other hand, the difluorinated compounds 14, 14', and 20 showed potent antagonistic activity, and inhibited the LPS-induced TNFα production dose-dependently. Compound 14' (10 μM) inhibited in excess of 80% of the LPS-induced TNFα production.
