Rapid synthesis of highly functionalised α-amino amides and medium ring lactones using multicomponent reactions of amino alcohols and isocyanides
作者:Martin Bachman、Sam E. Mann、Tom D. Sheppard
DOI:10.1039/c1ob06534c
日期:——
Four-component reactions between aminoalcohols, aldehydes, isocyanides and thiols proceed rapidly under microwave or conventional heating at 60 °C in methanol. The reaction is successful with a wide range of components and gives access to potentially drug-like products containing amine, amide and thioether functionality in moderate to excellent yield. The reaction conditions are also applicable to
NOVEL BICYCLIC PYRIDINONES AS GAMMA-SECRETASE MODULATORS
申请人:PFIZER INC.
公开号:US20160229847A1
公开(公告)日:2016-08-11
Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula II as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
Structure-based optimization was conducted to improve the potency and selectivity of BuChE inhibitors with delta-sulfonolactone-fused pyrazole scaffold. By mimicking the hydrophobic interactions of donepezil at PAS, the introduction of a tertiary benzylamine at 5-position can significantly increase BuChE inhibitory activity. Compounds C4 and C6 were identified as high selective nanomolar BuChE inhibitors (IC50 = 8.3 and 7.7 nM, respectively), which exhibited mild antioxidant capacity, nontoxicity, lipophilicity and neuroprotective activity. Kinetic studies showed that BuChE inhibition of compound C6 was mixed-type against BuChE (K-i = 24 nM) and >2000-fold selectivity for BuChE over AChE. The proposed binding mode of new inhibitors was consistent with the results of structure-activity relationship analysis. (C) 2020 Elsevier Masson SAS. All rights reserved.
Discovery of phenyl-linked symmetric small molecules as inhibitors of the programmed cell death-1/programmed cell death-ligand 1 interaction