作者:Angus M. MacLeod、Margaret A. Cascieri、Kevin J. Merchant、Sharon Sadowski、Sarah Hardwicke、Richard T. Lewis、D. Euan MacIntyre、Joseph M. Metzger、Tung Ming Fong
DOI:10.1021/jm00006a012
日期:1995.3
intermediate amino ketone 15 was developed which allows its preparation on a large scale. From this intermediate a range of amine-containing acylamino derivatives were prepared with affinity optimized in the morpholinylbutyramide 161 which has an IC50 of 0.17 nM at the human NK1 receptor. In addition to improving affinity, the amino group also provided aqueous solubility for a number of these derivatives. When
N-乙酰基-L-色氨酸苄酯的3,5-双(三氟甲基)苄基酯(3)来源于筛选铅N-乙基-L-色氨酸苄酯,已被用作鉴定高-亲和性物质P受体拮抗剂具有改善的体内活性。将酯部分改变为酰胺或醚会导致结合亲和力的显着损失,但是转化为酮可提供与当量酯相当的亲和力的化合物。关键中间体氨基酮15的同手性合成得以开发,可以大规模制备。从该中间体中制备了一系列含胺的酰氨基衍生物,并在吗啉基丁酰胺161中对亲和力进行了优化,该衍生物对人NK1受体的IC50为0.17 nM。除了改善亲和力 氨基还为许多这些衍生物提供了水溶性。在体内进行测试时,发现奎尼丁衍生物L-737,488(16i)是豚鼠中P物质诱导的皮肤外渗的口服活性抑制剂(ID50 = 1.8 mg / kg)。