Ozonolysis of (cyclohexa-1,4-dienyl)-L-alanine. An approach to the synthesis of new unnatural amino acids. X-Ray molecular structure of 2-hydroxy-7-methyl-3-phenylpyrazolo[1,5-a]pyrimidine
摘要:
The aromatic ring in L-phenylalanine was transformed into isoxazolyl, N-phenylpyrazolyl, and the bicyclic pyrazolo[1,5-a]pyrimidinyl groups, by a combination of Birch reduction and ozonolysis, followed by condensation with the relevant binucleophiles. The ozonolysis was carried out on the N-acylated esters of cyclohexa-1,4-dienylalanine. The resulting N-acylated esters of heterocyclic alanine derivatives were obtained without isolation of the ozonolysis products. 4-Phenylpyrazolidine-3,5-dione was used as a 'hydrazine donor' in the construction of a pyrazolyl group, as direct condensation with hydrazine was successful.
Disclosed herein are new heterocyclic compounds and compositions and their application as pharmaceuticals for the treatment of disease. Methods of inhibiting PAS Kinase (PASK) activity in a human or animal subject are also provided for the treatment of diseases such as diabetes mellitus.
[EN] GLYCINE B ANTAGONISTS<br/>[FR] ANTAGONISTES DE LA GLYCINE B
申请人:MERZ PHARMA GMBH & CO KGAA
公开号:WO2010139483A1
公开(公告)日:2010-12-09
The invention relates to pyrazolopyrimidine derivatives as well as their pharmaceutically acceptable salts. The invention further relates to a process for the preparation of such compounds. The compounds of the invention are glycine B antagonists and are therefore useful for the control and prevention of various disorders, including neurological disorders.
Birch Reduction of (−)-Ephedrine. Formation of a New, Versatile Intermediate for Organic Synthesis
作者:Gury Zvilichovsky、Isra Gbara-Haj-Yahia
DOI:10.1021/jo049726u
日期:2004.8.1
The reduction of (−)-ephedrine by lithium in liquid ammonia resulted in the formation of S-1-(1,4-cyclohexadien-1-yl)-N-methyl-2-propanamine. In addition to the reduction of the aromatic ring, the hydroxy group was reduced as well. The resulting 1,4-cyclohexadienyl group is a potentially versatile intermediate for further synthetic transformations. The ozonolysis of this group was investigated, producing
[EN] PYRAZOLOPYRIMIDINONE COMPOUNDS AND USES THEREOF<br/>[FR] COMPOSÉS DE PYRAZOLOPYRIMIDINONE ET LEURS UTILISATIONS
申请人:ADURO BIOTECH INC
公开号:WO2019055750A1
公开(公告)日:2019-03-21
The present invention relates to pyrazolopyrimidinone compounds. The present invention also relates to pharmaceutical compositions containing these compounds and methods of treating autoimmune, inflammatory, and neurodegenerative diseases by administering these compounds and pharmaceutical compositions to subjects in need thereof. The present invention also relates to the use of such compounds for research or other non-therapeutic purposes.
The invention relates to pyrazolopyrimidine derivatives as well as their pharmaceutically acceptable salts. The invention further relates to a process for the preparation of such compounds. The compounds of the invention are glycine B antagonists and are therefore useful for the control and prevention of various disorders, including neurological disorders,
本发明涉及吡唑嘧啶衍生物及其药学上可接受的盐类。本发明还涉及一种制备此类化合物的工艺。本发明的化合物是甘氨酸 B 拮抗剂,因此可用于控制和预防各种疾病,包括神经系统疾病、