Probes for narcotic receptor mediated phenomena. 17. Synthesis and evaluation of a series of trans-3,4-dichloro-N-methyl-N-[2-(1-pyrrolidinyl)cyclohexyl]benzeneacetamide (U50,488) related isothiocyanate derivatives as opioid receptor affinity ligands
作者:Brian R. De Costa、Richard B. Rothman、Victor Bykov、Linda Band、Agu Pert、Arthur E. Jacobson、Kenner C. Rice
DOI:10.1021/jm00166a014
日期:1990.4
(-)-1, (1R,2R)-trans-2-isothiocyanato-N-methyl-N-[2- (1-pyrrolidinyl)cyclohexyl]benzeneacetamide [(+)-1], failed to affect kappa receptors labeled by [3H]-U69,593 under the same conditions as for (-)-1. (1S,2S)-trans-3-Isothiocyanato-N-methyl-N-[2- (1-pyrrolidinyl)cyclohexyl]benzeneacetamide [(-)-2] inhibited to 49.6 +/- 5.1% of the control, in a wash-resistant manner, kappa receptors labeled by [3H]-U69
从对映体纯的(S,S)-(+)-反式-2-吡咯烷基-N-甲基环己胺[(+)-7]和(R,R)-(-)-合成了一系列U50,488相关的异硫氰酸酯反式-2-吡咯烷基-N-甲基环己胺[(-)-7]。(+)-和(-)-7与硝基苯基乙酸的DCC偶联,然后催化氢化并用硫光气处理,得到一系列六个U50,488的异构体芳基异硫氰酸酯类似物。类似地,(+)-和(-)-7与(+)-和(-)-Nt-Boc保护的苯基甘氨酸的DCC偶联得到四种异构体烷基异硫氰酸酯。使用大鼠和豚鼠的脑膜对异硫氰酸酯在体外产生对mu,delta和kappa位点的耐洗涤性抑制的能力进行评估。没有一种化合物能够不可逆地抑制[3H]溴唑胺与豚鼠和大鼠脑膜的结合(通过用酰化剂BIT和FIT进行预处理使功能性mu和delta受体消耗掉)。但是,(1S,2S)-反式-2-异硫氰酸根合-N-甲基-N- [2-(1-吡咯烷基)环己基]苯乙酰胺[(-)-1]能够特异性且不可逆地抑制由[