TRIAZOLE-ISOXAZOLE COMPOUND AND MEDICAL USE THEREOF
申请人:JAPAN TOBACCO INC.
公开号:US20160137639A1
公开(公告)日:2016-05-19
A compound represented by Formula [I]:
or pharmaceutically acceptable salt thereof, wherein each symbol is as defined in the description.
由式[I]表示的化合物:
或其药学上可接受的盐,其中每个符号如描述中所定义。
Compounds which inhibit beta-secretase activity and methods of use thereof
申请人:Oklahoma Medical Research Foundation
公开号:US20040121947A1
公开(公告)日:2004-06-24
Compounds inhibit memapsin 2 &bgr;-secretase activity and selectively inhibit memapsin 2 &bgr;-secretase activity relative to memapsin 1 &bgr;-secretase activity. The compounds are employed in methods to inhibit memapsin 2 &bgr;-secretase activity, in the treatment of Alzheimer's disease, in the inhibition of hydrolysis of a &bgr;-secretase site of a &bgr;amyloid precursor protein and to decrease &bgr;-amyloid protein in in vitro samples and in mammals. Proteins of memapsin 2 associated with compounds of the invention are crystallized.
first totalsynthesis of oteromycin was investigated. Our previously reported convergent strategy for the synthesis of α-acyl-γ-hydroxy-γ-lactams was first applied for the totalsynthesis, however, the final deprotection of the methoxyaminal moiety could not be achieved since an unexpected intramolecular Diels–Alder (IMDA) reaction occurred. Therefore, a novel one-pot four-step cascade reaction starting
Site-selective enzymatic C‒H amidation for synthesis of diverse lactams
作者:Inha Cho、Zhi-Jun Jia、Frances H. Arnold
DOI:10.1126/science.aaw9068
日期:2019.5.10
rings of varying size (see the Perspective by Hepworth and Flitsch). The enzyme directs amidation to the desired position and simultaneously prevents other side reactions. Science, this issue p. 575; see also p. 529 Evolved enzymes selectively form β-, γ-, and δ-lactams from simple precursors. A major challenge in carbon‒hydrogen (C‒H) bond functionalization is to have the catalyst control precisely where
The development of an unprecedented methodology based upon direct photolysis of N,N-disubstituted hydrazides to secure N-N bondcleavage and to trigger the formation of NH-free lactams has been disclosed.
已经公开了基于 N,N-二取代酰肼的直接光解以确保 NN 键断裂并触发无 NH 内酰胺的形成的前所未有的方法的开发。