α-手性胺是大规模制备生物活性化合物的关键中间体;在此,我们提出了一种新型的钯基纳米催化剂,能够选择性催化羰基化合物的还原胺化,从而能够原位催化使用 ω-转氨酶从单酶级联中的浪费副产物中再生氨基供体,而不需要昂贵的辅酶 NAD(P)H。该级联网络将 ω-转氨酶辅助的转氨反应与由异质钯基纳米催化剂促进的选择性还原胺化反应结合起来。氮源自羟胺离子,将生成的副产物转化回氨基供体,产生收率高达 99% 的手性胺,并具有出色的对映选择性。这种化学酶单酶转氨作用-还原胺化级联网络具有很高的原子效率,并产生 H 2 O 作为其唯一的副产物,证明了其在合成化学及其他领域的潜在影响。
[EN] METHOD FOR PREPARING SUBSTITUTED TRIAZOLOPYRIDINES<br/>[FR] PROCÉDÉ DE PRÉPARATION DE TRIAZOLOPYRIDINES SUBSTITUÉES
申请人:BAYER PHARMA AG
公开号:WO2014009219A1
公开(公告)日:2014-01-16
The present invention relates to methods of preparing substituted triazolopyridine compounds of general formula (I) as described and defined herein, as well as to intermediate compounds useful in the preparation of said compounds.
METHOD FOR PREPARING SUBSTITUTED TRIAZOLOPYRIDINES
申请人:BAYER PHARMA AKTIENGESELLSCHAFT
公开号:US20150148542A1
公开(公告)日:2015-05-28
The present invention relates to methods of preparing substituted triazolopyridine compounds of general formula (I) as described and defined herein, as well as to intermediate compounds useful in the preparation of said compounds.
Sulfonamide compounds for the treatment of neurodegenerative disorders
申请人:Brodney A. Michael
公开号:US20050222254A1
公开(公告)日:2005-10-06
The present invention relates to compounds of the Formula I
wherein R
1
, R
2
, R
3
, m, and n are as defined. Compounds of the Formula I have activity inhibiting production of Aβ-peptide. The invention also relates to pharmaceutical compositions and methods for treating disorders and diseases, for example, neurodegenerative and/or neurological disorders, e.g., Alzheimer's disease, in a mammal comprising compounds of the Formula I.
SULFONAMIDE COMPOUNDS FOR THE TREATMENT OF NEURODEGENERATIVE DISORDERS
申请人:Brodney A. Michael
公开号:US20070129349A1
公开(公告)日:2007-06-07
The present invention relates to compounds of the Formula I
wherein R
1
, R
2
, R
3
, m, and n are as defined Compounds of the Formula I have activity inhibiting production of Aβ-peptide. The invention also relates to pharmaceutical compositions and methods for treating disorders and diseases, for example, neurodegenerative and/or neurological disorders, e.g., Alzheimer's disease, in a mammal comprising compounds of the Formula I.