First Synthesis of 3-Mercapto-2(1<i>H</i>)-pyridinone, a Simple Disubstituted Pyridine Useful for Synthesis of the 4-Azaphenoxathiine Ring System and Its Novel Diazaphenoxathiine Analogs: 1,6-Diazaphenoxathiine and 2,6-Diazaphenoxathiine<sup>1</sup>
作者:Keith Smith、Dorian Anderson、Ian Matthews
DOI:10.1021/jo951254j
日期:1996.1.1
3-Mercapto-2(1H)-pyridinone (1) can be synthesized in three simple high-yielding steps from readily available 2-tert-butylthiazolo[4,5-b]pyridine (2). Its disodium salt condenses with o-chloronitrobenzene, 2-chloro-3-nitropyridine, and 3-chloro-4-nitropyridine 1-oxide to give respectively 4-azaphenoxathiine (10), 1,6-diazaphenoxathiine (12), and 2,6-diazaphenoxathiine 2-oxide (14) which reduces to 2,6-diazaphenoxathiine (15). The structures of these previously unreported azaphenoxathiine systems were confirmed by assignment of their respective C-13 NMR spectra.
CARBACEPHEM ß -LACTAM ANTIBIOTICS
申请人:Achaogen, Inc.
公开号:EP2205600A1
公开(公告)日:2010-07-14
CARBACEPHEM BETA-LACTAM ANTIBIOTICS
申请人:Wagman Allan S.
公开号:US20100267686A1
公开(公告)日:2010-10-21
Carbacephem β-lactam antibiotics having the following chemical structures (I) and (II) are disclosed:
including stereoisomers, pharmaceutically acceptable salts, esters and prodrugs thereof, wherein Ar
2
, R
1
, R
2
and R
3
are as defined herein. The compounds are useful for the treatment of bacterial infections, in particular those caused by methicillin-resistant
Staphylococcus
spp.
GAMMA SECRETASE INHIBITORS
申请人:Wu Wen-Lian
公开号:US20140227302A1
公开(公告)日:2014-08-14
Disclosed herein are compounds of Formula (I) (I) and pharmaceutically acceptable salts thereof, wherein each of the substituents is given the definition as set forth in the specification and claims. Also disclosed are pharmaceutical compositions containing the compound of Formula (I) and use of the compound in the treatment of neurodegenerative diseases or conditions such as Alzheimer's disease.