A series of amides and sulfonamides, structurally related to DM235 (sunifiram) and MN19 (sapunifiram), derived by ring expansion or contraction, or by inversion of the exocyclic amide function, have been synthesized and tested for cognition-enhancing activity in the mouse passive-avoidance test. Some of the compounds display good antiamnesic and procognitive activity, with higher potency than piracetam
OKADA JUTARO; SHIMABAYASHI MASAHARU, CHEM. AND PHARM. BULL., 1980, 28, NO 11, 3310-3314
作者:OKADA JUTARO、 SHIMABAYASHI MASAHARU
DOI:——
日期:——
Syntheses of N-(2-hexahydropyrimidinoethyl)propionanilides.
作者:JUTARO OKADA、MASAHARU SHIMABAYASHI
DOI:10.1248/cpb.28.3310
日期:——
N-(2-Hexahydropyrimidinoethyl) anilines (6a-f) were prepared by the condensation of N-(β-bromoethyl) aniline hydrobromide and hexahydropyrimidines. They were further converted to N-(2-hexahydropyrimidinoethyl) propionanilides by N-propionylation. The analgesic activities of the twelve compounds thus obtained were examined by subcutaneous administration to mice. Among the propionanilides, the N-isopropyl- and N-benzylhexahydropyrimidine derivatives (7c, e) possessed ca. 1/3 and 1/6 of the analgesic effect of pentazocine, respectively, and 7e showed a lower toxicity. On the other hand, the N-phenethyl derivative (7f) was inactive.