Pharmaceutically active ornithine derivatives, ammonium salts thereof and methods of making same
申请人:——
公开号:US20040072837A1
公开(公告)日:2004-04-15
The present invention relates to pharmaceutically active ornithine compounds, particularly to pharmaceutically acceptable ammonium salts of N
&dgr;
-acyl derivatives of N
&agr;
(4-amino-4-deoxypteroyl)-L-omithine compounds; and methods of treatment and pharmaceutical compositions that utilize or comprise one or more of such ammonium salts. The ammonium salts provided by the invention exhibit superior chemical stability than corresponding acidic N
&dgr;
-acyl derivatives of N
&dgr;
-acyl derivatives of N
&agr;
(4-amino-4-deoxypteroyl)-L-ornithine compounds.
The present disclosure provides, inter alia, Compounds of Formulae IA, IB, IC, IIA, IIB and IIC
or pharmaceutically acceptable salts thereof that are modulators of the C5a receptor. Also provided are pharmaceutical compositions and methods of use including the treatment of diseases or disorders involving pathologic activation from C5a and non-pharmaceutical applications.
Iodine-Promoted N–H/α,β-C(sp<sup>3</sup>)-Trifunctionalization of <scp>l</scp>-Proline: Access to 3,4-Dihydrobenzo[<i>b</i>][1,7]naphthyridines via Consecutive Decarboxylation/Ring Opening/Dicyclization
proceeding through an iodine-promoted consecutive decarboxylation/ring-opening/dicyclization process, is achieved. This strategy affords structurally diverse fused N-heterocycles in good yields with a wide substrate scope. Preliminary mechanistic studies indicate that catabolism of l-proline might be involved in this cascade reaction and the in situ generated intermediate 4-aminobutanal was identified
Facile synthesis of γ-, α-, and ε-lactams by cyclodehydration of ω-amino acids on alumina or silica gel
作者:Artur Bladé-Font
DOI:10.1016/s0040-4039(00)93171-x
日期:1980.1
It has been found that γ-, α-, and ε-amino acids cyclodehydrate easily to their corresponding lactams by the action of alumina or silica gel in boiling toluene.
[EN] METHODS OF MAKING L-ORNITHINE PHENYL ACETATE<br/>[FR] PROCÉDÉS DE FABRICATION D'ACÉTATE DE PHÉNYLE DE L-ORNITHINE
申请人:OCERA THERAPEUTICS INC
公开号:WO2012048043A1
公开(公告)日:2012-04-12
Disclosed herein are processes for making L-ornithine phenyl acetate. The process may include, for example, intermixing a halide salt of L-ornithine with silver phenyl acetate. The process may also include forming a phenyl acetate salt in situ. The present application also relates to various compositions obtained from these processes, including crystalline forms.