Cycloalkyl, lactam, lactone and related compounds, pharmaceutical compositions comprising same, and methods for inhibiting beta-amyloid peptide release and/or its synthesis by use of such compounds
申请人:——
公开号:US20020045747A1
公开(公告)日:2002-04-18
Disclosed are compounds which inhibit &bgr;-amyloid peptide release and/or its synthesis, and, accordingly, have utility in treating Alzheimer's disease. Also disclosed are pharmaceutical compositions comprising a compound which inhibits &bgr;-amyloid peptide release and/or its synthesis as well as methods for treating Alzheimer's disease both prophylactically and therapeutically with such pharmaceutical compositions.
Verbesserte Synthese von tert.-Butyloxycarbonyl-aminosäuren durch pH-Stat-Reaktion
作者:Eugen Schnabel
DOI:10.1002/jlac.19677020123
日期:1967.3.21
teilgeschützten Derivate mit tert.-Butyloxy-carbonylazid führt bei kontrolliertem pH in guten Ausbeuten zu den tert.-Butyloxycarbonyl-Derivaten. Auch sterisch gehinderte Aminosäuren reagieren glatt. Durch die Wahl der pH-Werte lassen sich die günstigsten Bedingungen für eine rasche und weitgehende Umsetzung bequem ermitteln.
(Smoc) protectinggroup. This approach enables peptide assembly under aqueous conditions, real‐time monitoring of building block coupling, and efficient postsynthetic purification. The procedure for the synthesis of all natural and several non‐natural Smoc‐protected amino acids is described, as well as the assembly of 22 peptidesequences and the fundamental issues of SPPS, including the protecting group
A process for producing &agr;-aminohalomethyl ketones or N-protected &agr;-aminohalomethyl ketones from specified 3-oxazolidin-5-one derivatives via 5-halomethyl-5-hydroxy-3-oxazolidine derivatives. By this process, &agr;-aminohalomethyl ketones and compounds relating to them can be obtained efficiently and economically in industrial scale.
Cycloalkylcarbonylamino Acid Derivative and Process For Producing The Same
申请人:Kobayashi Nobuo
公开号:US20090111983A1
公开(公告)日:2009-04-30
Cycloalkylcarbonylamino acid derivatives, which are raw material intermediates of a novel cycloalkane carboxamide derivative that selectively inhibits cathepsin K, and a production process thereof, are provided.
A cycloalkylcarbonylamino acid derivative represented by the following general formula (I), or a pharmaceutically acceptable salt thereof:
(wherein, R
1
and R
2
represent alkyl groups, alkenyl groups, alkynyl groups, aromatic hydrocarbon groups, heterocyclic groups or the like, and ring A represents a cyclic alkylidene group having 5, 6 or 7 carbon atoms).