The invention relates to cyclic peptide derivatives, to their use in medicine, to compositions containing them, to processes for their preparation and to intermediates used in such processes. More particularly the invention relates to cyclic peptide C5a receptor antagonists of formula (Ia) or formula (Ib), or pharmaceutically acceptable salts thereof, wherein R
1a
, R
1b
, R
2
, R
3
and R
4
areas defined in the description. C5a receptor antagonists are potentially useful in the treatment of a wide range of 1 disorders, including inflammatory disorders and immune disorders.
[EN] CYCLIC PEPTIDES AS C5 A RECEPTOR ANTAGONISTS<br/>[FR] PEPTIDES CYCLIQUES EN TANT QU'ANTAGONISTES DU RÉCEPTEUR C5
申请人:PFIZER
公开号:WO2018020358A1
公开(公告)日:2018-02-01
The invention relates to cyclic peptide derivatives, to their use in medicine, to compositions containing them, to processes for their preparation and to intermediates used in such processes. More particularly the invention relates to cyclic peptide C5a receptor antagonists of formula (Ia)or formula (Ib), or pharmaceutically acceptable salts thereof,wherein R1a, R1b, R2, R3 and R4 areas defined in the description. C5a receptor antagonists are potentially useful in the treatment of a wide range of 1 disorders,including inflammatory disorders and immune disorders.