Central Cholinergic Agents. I. Potent Acethlcholinesterase Inhibitors, 2-(.OMEGA.-(N-Alkyl-N-(.OMEGA.-phenyl-alkyl)amino)alkyl)-1H-isoindole-1,3(2H)-diones, Based on a New Hypothesis of the Enzyme's Active Site.
The present invention relates to a process for preparing N-(1-alkenyl)carboxamides of the formula I, which comprises reacting a carboxamide of the formula II with an alkyne of the formula III in the presence of a catalyst selected from among carbonyl complexes, halides and oxides of rhenium, manganese, tungsten, molybdenum, chromium and iron.
Central Cholinergic Agents. I. Potent Acethlcholinesterase Inhibitors, 2-(.OMEGA.-(N-Alkyl-N-(.OMEGA.-phenyl-alkyl)amino)alkyl)-1H-isoindole-1,3(2H)-diones, Based on a New Hypothesis of the Enzyme's Active Site.
作者:Yuji ISHIHARA、Koki KATO、Giichi GOTO
DOI:10.1248/cpb.39.3225
日期:——
It has been suggested that the active site of acetylcholinesterase contains a hydrophobic binding site (HBS-1), which is closely adjacent to both the anionic and the esteratic sites. In this paper, we assumed that there exists another hydrophobic binding site (HBS-2), some distance removed from the anionic site. On this assumption, a new working hypothesis was proposed for the design of acetylcholinesterase inhibitors. A series of 2-[ω-[N-alkyl-N-(ω-phenyl-alkyl)amino]alkyl]-1H-isoindole-1, 3(2H)-diones was designed based on this hypothesis and tested for its inhibitory activities on acetylcholinesterase. Some in this series were revealed to be more potent than physostigmine. Optimum activity was found to be associated with a five carbon chain length separating the benzylamino group from the 1H-isoindole-1, 3(2H)-dione (phthalimide) moiety. Quantitative study of substitution effect on the phthalimide moiety revealed that hydrophilic and electron-withdrawing groups enhance the activity.
A compound of the formula
and intermediates useful in preparing same.
一种化合物的公式及其制备过程中有用的中间体。
9-Substituted carbacyclin analogues
申请人:THE UPJOHN COMPANY
公开号:EP0086611A1
公开(公告)日:1983-08-24
Novel compounds of the following general formula:
wherein R is -CN; -CH2X wherein X is chloro or bromo; -CH=CH2; -CHO; -CH20H; -C≡CH; -C≡C-CF3; -C≡C-CnH2nCH3 wherein n is zero, one, 2 or 3; cis-CH=CHCnH2nCH3 or trans -CH=CHCnH2nCH3 wherein n is zero, one, 2 or 3; -CH=C(X')2 wherein X' is fluoro, chloro, or bromo; cis-CH=CHX' or trans-CH=CHX' wherein X' is fluoro, chloro, or bromo;-C≡C-C≡CR1 wherein R1 is hydrogen, methyl, or ethyl; -C≡COR2 wherein R2 is methyl or ethyl; and intermediates for their preparation.
以下通式的新型化合物:
其中 R 是 -CN;-CH2X,其中 X 是氯或溴;-CH=CH2;-CHO;-CH20H;-C≡CH;-C≡C-CF3;-C≡C-CnH2nCH3,其中 n 是零、1、2 或 3;顺式-CH=CHCnH2nCH3 或反式-CH=CHCnH2nCH3,其中 n 是零、1、2 或 3;顺式-CH=C(X')2,其中 X'为氟、氯或溴;顺式-CH=CHX'或反式-CH=CHX',其中 X'为氟、氯或溴;-C≡C-C≡CR1,其中 R1 为氢、甲基或乙基;-C≡COR2,其中 R2 为甲基或乙基;以及用于制备它们的中间体。