[EN] COMPOUNDS FOR THE TREATMENT AND PREVENTION OF INFLUENZA<br/>[FR] COMPOSÉS POUR LE TRAITEMENT ET LA PRÉVENTION DE LA GRIPPE
申请人:HOFFMANN LA ROCHE
公开号:WO2011094953A1
公开(公告)日:2011-08-11
A compound of formula (I) as well as pharmaceutically acceptable salt thereof, wherein R1 to R4 and Ar are as defined in description and in claims, can be used as a medicament.
The present invention relates to methods of making fused ring compounds, such as indeno-fused naphthols, and fused ring indenopyran compounds, such as indeno-fused naphthopyrans, that each employ an unsaturated compound represented by the following Formula II.
Referring to the unsaturated compound of Formula II: Ring-A can be selected from optionally substituted aryl (e.g., phenyl); m can be, for example, from 0 to 4; R
1
for each m can be selected from optionally substituted hydrocarbyl (e.g., C
1
-C
6
alkyl) optionally interrupted with at least one linking group (e.g., —O—); and R
3
and R
16
can each be independently selected from, for example, hydrogen or optionally substituted hydrocarbyl, such as C
1
-C
8
alkyl. When Ring-A is a phenyl group, the unsaturated compound represented by Formula II can be referred to as an unsaturated indanone acid/ester compound, or an indenone acid/ester compound (depending on whether R
16
is hydrogen, or an optionally substituted hydrocarbyl group).