There is provided a process for the preparation of a compound of formula (I), wherein R
1
, R
2
, R
3
, R
4
, X and Y are as described in the description. Such compounds may, for example, be useful intermediates in the synthesis of drugs such as Dronedarone. Intermediate steps of the process comprise formulae according to (II) and (III).
NEW PROCESS FOR PREPARING HYDROXYLAMINES AND MEDICAMENTS
申请人:Hansson Lars O.
公开号:US20120122971A1
公开(公告)日:2012-05-17
There is provided a process for the preparation of a compound of formula II,
wherein R
1
, R
2
, R
3
and R
4
are as described in the description. Such compounds may, for example, be useful intermediates in the synthesis of drugs such as Dronedarone.
PROCESS FOR PREPARING HYDROXYLAMINES AND MEDICAMENTS
申请人:Cambrex Karlskoga AB
公开号:US20140206761A1
公开(公告)日:2014-07-24
There is provided a process for the preparation of a compound of formula II,
wherein R
1
, R
2
, R
3
and R
4
are as described in the description. Such compounds may, for example, be useful intermediates in the synthesis of drugs such as Dronedarone.
There is provided a process for the preparation of a compound of formula (I), wherein R
1
, R
2
, R
3
, R
4
, X and Y are as described in the description. Such compounds may, for example, be useful intermediates in the synthesis of drugs such as Dronedarone.