申请人:LEADXPRO AG
公开号:US20210395225A1
公开(公告)日:2021-12-23
The present invention relates to novel antagonists of the A2B adenosine receptor and pharmaceutical compositions comprising said antagonists as well as their uses for the treatment and prevention of disorders known to be susceptible to improvement by antagonism of the A2B receptor such as asthma, chronic obstructive pulmonary disorder (COPD), pulmonary fibrosis, vascular diseases, allergic diseases, hypertension, retinopathy, diabetes mellitus, inflammatory gastrointestinal tract disorders, inflammatory diseases, autoimmune diseases, renal diseases, neurological disorders and, in particular, cancers. In particular, the present invention relates to compounds of formula (I), wherein R1 represents 1 to 3 identical or different R1 substituents, wherein said R1 is independently at each occurrence selected from hydrogen, halogen, C
1
-C
8
alkyl, C
1
-C
8
haloalkyl, C
1
-C
8
alkoxy, C
1
-C
8
hydroxyalkyl and C
1
-C
8
alkoxyalkyl; Ra is selected from phenyl, pyridinyl, pyrimidinyl, thiazolyl, thiodiazolyl, oxazolyl, pyrazolyl and triazolyl wherein said phenyl, pyridinyl, thiazolyl, thiodiazolyl, oxazolyl, pyrazolyl and triazolyl is independently optionally substituted by one or more substituents independently selected from halogen, hydroxyl, cycloalkyl, C
1
-C
4
alkyl-substituted cycloalkyl, C
1
-C
8
alkyl, C
1
-C
8
haloalkyl, C
1
-C
8
alkoxy, C
1
-C
8
alkylaminocarbonyl, C
1
-C
8
hydroxyalkyl, C
1
-C
8
dialkylaminoC
1
-C
8
alkyl, C
1
-C
8
aminoalkyl and a heterocycle selected from oxiran, oxetane, aziridine and azetidine wherein said oxiran, oxetane, aziridine and azetidine ar independently optionally substituted by halogen, hydroxyl, C
1
-C
4
alkyl, C
1
-C
2
haloalkyl, C
1
-C
2
alkoxy; or Ra is —CONHR′ wherein R′ is selected from C
1
-C
8
alkyl, cycloalkyl, aryl, heteroaryl and C
1
-C
8
alkyl-N-morpholino, wherein said aryl, heteroaryl and C
1
-C
8
alkyl-N-morpholino is independently optionally substituted by [one or more] substituents selected from halogen, cycloalkyl, C
1
-C
8
alkyl, C
1
-C
8
alkoxy, C
1
-C
8
hydroxalkyl and C
1
-C
8
alkoxyalkyl; Ar/Het is selected from pyridinyl, phenyl and oxazolyl wherein said pyridinyl, phenyl and oxazolyl is independently optionally substituted by one or more substituents independently selected from halogen, cyano, C
1
-C
8
alkyl, C
1
-C
8
haloalkyl, C
1
-C
8
alkoxy, C
1
-C
8
hydroxyalkyl and C
1
-C
8
alkoxyalkyl; or pharmaceutically acceptable salt, or hydrate thereof.