Structural Optimization Affording 2-(<i>R</i>)-(1-(<i>R</i>)-3,5-Bis(trifluoromethyl)phenylethoxy)-3-(<i>S</i>)-(4-fluoro)phenyl-4- (3-oxo-1,2,4-triazol-5-yl)methylmorpholine, a Potent, Orally Active, Long-Acting Morpholine Acetal Human NK-1 Receptor Antagonist
作者:Jeffrey J. Hale、Sander G. Mills、Malcolm MacCoss、Paul E. Finke、Margaret A. Cascieri、Sharon Sadowski、Elzbieta Ber、Gary G. Chicchi、Marc Kurtz、Joseph Metzger、George Eiermann、Nancy N. Tsou、F. David Tattersall、Nadia M. J. Rupniak、Angela R. Williams、Wayne Rycroft、Richard Hargreaves、D. Euan MacIntyre
DOI:10.1021/jm980299k
日期:1998.11.1
to the morpholine acetal human neurokinin-1 (hNK-1) receptor antagonist 4, and this resulted in the discovery of 2-(R)-(1-(R)-3, 5-bis(trifluoromethyl)phenylethoxy)-3-(S)-(4-fluoro)phenyl-4-(3-ox o-1 ,2,4-triazol-5-yl)methyl morpholine (17). This modified compound is a potent, long-acting hNK-1 receptor antagonist as evidenced by its ability to displace [125I]Substance P from hNK-1 receptors stably
对吗啉乙缩醛人神经激肽-1(hNK-1)受体拮抗剂4进行了需要新颖合成化学的结构修饰,这导致了2-(R)-(1-(R)-3,5-bis)的发现。 (三氟甲基)苯基乙氧基)-3-(S)-(4-氟)苯基-4-(3-ox o-1,2,4-三唑-5-基)甲基吗啉(17)。这种修饰的化合物是一种有效的长效hNK-1受体拮抗剂,其能力是从CHO细胞中稳定表达的hNK-1受体[IC50 = 0.09 +/- 0.06 nM]取代[125I]物质P的能力,以及测量从hNK-1表达的17的缔合速率(k1 = 2.8 +/- 1.1 x 10(8)M-1 min-1)和解离速率(k-1 = 0.0054 +/- 0.003 min-1) Sf9膜的Kd = 19 +/- 12 pM,受体占用的t1 / 2等于154 +/- 75 min。口服预给药17(IC50(1 h)= 0.008 mg / kg)以剂量