4,5,6-Trisubstituted Piperidinones as Conformationally Restricted Ceramide Analogues: Synthesis and Evaluation as Inhibitors of Sphingosine and Ceramide Kinases and as NKT Cell-Stimulatory Antigens
作者:Thresen Mathew、Marco Cavallari、Andreas Billich、Frederic Bornancin、Peter Nussbaumer、Gennaro De Libero、Andrea Vasella
DOI:10.1002/cbdv.200900045
日期:2009.10
amino alcohols 19 and 20 inhibit sphingosine kinase 1 (SPHK1), while the L-arabino analogues 7, 15, 17, and 18 are inactive. The L-arabino and the L-ribo dimethylamines 21-24, the L-gluco ceramide analogues 43, 46a, and 47, and the L-altro ceramide analogues 51a and 52 did not block SPHK1. Neither the L-arabino diol 7 nor the L-ribo diol 8 inhibited SPHK2 or ceramide kinase. The L-arabino diols 7 and 15
从烯丙基醇34经内酰胺31和32合成基于构象的哌啶酮酮鞘氨醇类似物7、8、15和16。将L-阿拉伯糖醇7和L-核糖二醇8转化为氨基醇17-24。从31或32合成L-葡萄糖神经酰胺类似物43、46a和47,以及L-altra神经酰胺类似物51a和52。L-核糖二醇8和16以及氨基醇19和20抑制鞘氨醇激酶。 1(SPHK1),而L-阿拉伯糖类似物7、15、17和18处于不活动状态。L-阿拉伯糖和L-核糖二甲胺21-24,L-葡萄糖神经酰胺类似物43、46a和47,以及L-altra神经酰胺类似物51a和52不阻断SPHK1。L-阿拉伯糖二醇7和L-核糖二醇8均不抑制SPHK2或神经酰胺激酶。当由活抗原呈递细胞(APC)以及与板结合的人CD1d呈递时,L-阿拉伯糖二醇7和15刺激不变的自然杀伤T(iNKT)细胞,而L-核糖二醇8和16,L-核糖二醇8和16阿拉伯氨基醇17-18和二甲胺21-2