<i>N</i>-Benzoyl-<i>N</i>-[1-(1-naphthyl)ethyl]-<i>trans</i>-1,2-diaminocyclohexanes: Development of 4-Chlorophenylcarboxamide (Calhex 231) as a New Calcium Sensing Receptor Ligand Demonstrating Potent Calcilytic Activity
作者:Albane Kessler、Hélène Faure、Christophe Petrel、Didier Rognan、Michèle Césario、Martial Ruat、Philippe Dauban、Robert H. Dodd
DOI:10.1021/jm051233+
日期:2006.8.1
active compound in this series was the 4-(trifluoromethoxy)benzenesulfonyl derivative 7e, which displayed an IC50 of 5.4 +/- 0.5 microM with respect to the inhibition of calcium-induced tritiated inositol phosphate ([3H]IP) accumulation in Chinese hamster ovarian (CHO) cells expressing the CaSR. Replacement of the sulfonamide linkage of this compound by a carboxamide led to a 6-fold increase in activity
结构-活性关系(SAR)研究主要在N1-芳基磺酰基-N2- [1-(1-(萘基)乙基]-反式-1,2-二氨基环己烷的N1位置进行,这是一种新的分解钙剂钙敏感受体(CaSR)。该系列中活性最高的化合物是4-(三氟甲氧基)苯磺酰基衍生物7e,在抑制钙引起的tri化肌醇磷酸([3H] IP)积累方面,IC50为5.4 +/- 0.5 microM。表达CaSR的仓鼠卵巢(CHO)细胞。该化合物的磺酰胺键被羧酰胺取代导致活性增加了6倍(7m,IC50 = 0.9 +/- 0.2 microM)。在合成的羧酰胺中,活性最高的化合物之一是4-氯苯基羧酰胺(1S,2S,1'R)-7n(Calhex 231,IC50 = 0.33 +/- 0.02 microM)。(1S,2S,1'R)-7n的绝对构型是由化合物7d的一种非对映异构体的X射线晶体学研究得出的。(1S,2S,1'R)异构体的立体化学偏好可以