[DE] SUBSTITUIERTE DIHYDROCHINAZOLINE MIT ANTIVIRALEN EIGENSCHAFTEN<br/>[EN] SUBSTITUTED DIHYDROCHINAZOLINES HAVING ANTIVIRAL PROPERTIES<br/>[FR] DIHYDROQUINAZOLINES SUBSTITUEES A PROPRIETES ANTIVIRALES
申请人:BAYER HEALTHCARE AG
公开号:WO2004096778A1
公开(公告)日:2004-11-11
Die Erfindung betrifft substituierte Dihydrochinazoline der Formel (I) und Verfahren zu ihrer Herstellung sowie ihre Verwendung zur Herstellung von Arzneimitteln zur Behandlung und/oder Prophylaxe von Krankheiten, insbesondere zur Verwendung als antivirale Mittel, insbesondere gegen Cytomegaloviren.
The invention relates to substituted dihydroquinazolines and to processes for their preparation and also to their use for preparing medicaments for the treatment and/or prophylaxis of diseases, in particular for use as antiviral agents, in particular against cytomegalo viruses.
The present invention provides a compound represented by the formula
wherein A represents (1) a bond, (2) a group represented by the formula —CR
a
═CR
b
— (R
a
and R
b
each represent a hydrogen atom or C
1-6
alkyl) and the like; R
1
represents (1) cyano or (2) an optionally esterified or amidated carboxyl group; R
2
represents (1) a hydrogen atom, (2) an optionally substituted hydroxy group, (3) an optionally substituted amino group and the like; R
3
and R
4
each represent a hydrogen atom and the like; R
5
represents a hydrogen atom and the like; R
6
represents an optionally substituted hydroxy group and the like; R
7
and R
8
each represent an optionally substituted hydrocarbon group and the like; R
9
and R
10
each represent (1) a hydrogen atom and the like; Y represents an optionally substituted methylene group; and n represents 0 or 1, or a salt thereof, which has an excellent phosphodiesterase IV inhibiting action.
Reductive Cyclizations of Nitroarenes to Hydroxamic Acids by Visible Light Photoredox Catalysis
作者:Tehshik Yoon、Megan Cismesia、Michael Ischay
DOI:10.1055/s-0033-1338419
日期:——
We have developed a photocatalytic reduction of nitroarenes as an efficient, chemoselective route to biologically important N-phenyl hydroxamic acid scaffolds. Optimal conditions call for 2.5 mol% of a ruthenium photocatalyst, visible light irradiation, and a dihydropyridine terminal reductant. Because of the mild nature of the visible light activation, functional groups that might be sensitive to other non-photochemical reduction methods are easily tolerated.
SUBSTITUIERTE DIHYDROCHINAZOLINE MIT ANTIVIRALEN EIGENSCHAFTEN