New 1-(heterocyclylalkyl)-4-(propionanilido)-4-piperidinyl methyl ester and methylene methyl ether analgesics
作者:Jerome R. Bagley、Sheela A. Thomas、Frieda G. Rudo、H. Kenneth Spencer、Brian M. Doorley、Michael H. Ossipov、Thomas P. Jerussi、Mark J. Benvenga、Theodore Spaulding
DOI:10.1021/jm00106a051
日期:1991.2
bulkier aromatic ring systems than the corresponding components of the arylethyl groups of the prototypic methyl ester (carfentanil, 2) and methylene methylether (sufentanil, 3 and alfentanil, 4) 4-propionanilido analgesics. Compound 9A (methyl 1-[2-(1H-pyrazol-1-yl)-ethyl]-4-[(1-oxopropyl)phenylamino]-4- piperidinecarboxylate), which exhibited appreciable mu-opioid receptor affinity, was a more potent