The present invention relates to compounds of the formula (I) wherein R1a, R1b, R2, R3, (R4)n and ring (A) are as described in the description, to their preparation, to pharmaceutically acceptable salts thereof, and to their use as pharmaceuticals, to pharmaceutical compositions containing one or more compounds of formula (I), to methods for the preparation of such compounds of formula (I), and especially to their use as TPH modulators.
Synthesis of a series of 8-(substituted-phenyl)xanthines and a study on the effects of substitution pattern of phenyl substituents on affinity for adenosine A1 and A2A receptors
作者:Ranju Bansal、Gulshan Kumar、Deepika Gandhi、Louise C. Young、Alan L. Harvey
DOI:10.1016/j.ejmech.2008.10.017
日期:2009.5
A new series of 8-(substituted-phenyl)xanthines have been synthesized and compounds were evaluated for their affinity for A1 and A2 adenosine receptors (AR) using radioligand binding assays. The effects of varying the positions of 8-phenyl substituents on affinity and selectivity at A1 and A2A adenosine receptors have been studied. Isovanilloid 1,3-dimethyl-8-[4-methoxy-3-(2-morpholin-4-ylethoxy)phenylxanthine
The aldehyde derivatives of 1,3-dipropyl xanthines as described in this paper, constitutes a new series of selective adenosine ligands displaying bronchospasmolytic activity. The effect of substitution at 3rd - and 4th -position of 8-phenyl xanthine has also been taken into consideration. The synthesized compounds showed varying binding affinities at different adenosine receptor subtypes (A1 , A2A
Novelanalogs of trifenagrel were synthesized by using inexpensive and reusable phosphotungstic acid, H3[PW12O40] (3 mol %) catalyst under classical heating. Two of the newly synthesized triaryl imidazoles exhibited moderate antibacterial activity. J. Heterocyclic Chem., 46, 195 (2009).
Trifenagrel的新型类似物通过使用廉价且可重复使用的方法合成磷钨酸,H 3 [PW 12 O 40 ](3摩尔%)催化剂在经典加热条件下。新合成的三芳基咪唑中的两种具有中等的抗菌活性。杂环化学杂志,46,195(2009)。