The present invention provides compounds having formula (I):
and pharmaceutically acceptable derivatives thereof, wherein R
1
-R
4
, n, p, A, B, D, E, L and AR
1
are as described generally and in classes and subclasses herein, and additionally provides pharmaceutical compositions thereof, and methods for the use thereof for the treatment of disorders mediated by the CD11/CD18 family of cellular adhesion molecules (e.g., LFA-1).
The present invention provides compounds having formula (I):
and pharmaceutically acceptable derivatives thereof, wherein R
1
-R
4
, n, p, A, B, D, E, L and AR
1
are as described generally and in classes and subclasses herein, and additionally provides pharmaceutical compositions thereof, and methods for the use thereof for the treatment of disorders mediated by the CD11/CD18 family of cellular adhesion molecules (e.g., LFA-1).
The present invention provides compounds having formula (I):
and pharmaceutically acceptable derivatives thereof, wherein R
1
-R
4
, n, p, A, B, D, E, L and AR
1
are as described generally and in classes and subclasses herein, and additionally provides pharmaceutical compositions thereof, and methods for the use thereof for the treatment of disorders mediated by the CD11/CD18 family of cellular adhesion molecules (e.g., LFA-1).
PROCESS FOR THE PREPARATION OF LIFITEGRAST
申请人:OLON S.P.A.
公开号:US20210246123A1
公开(公告)日:2021-08-12
The invention relates to a process for the preparation of Lifitegrast of formula (I), which comprises: a) condensation of the compound of formula (II) with the compound of formula (III) to give the compound of formula (IV) wherein R
1
, R
2
and R
3
are independently selected from straight or branched C
1
-C
6
alkyl groups; b) chlorination of compound (IV) in the presence of a chlorinating agent (IV), (V), c) condensation of compound (V) with amino acid (VI) to give compound (I), c) condensation of compound (V) with amino acid (VI) to give compound (I), d) optional purification of the crude Lifitegrast in mixtures of polar aprotic solvents and water.