申请人:PIQUR THERAPEUTICS AG
公开号:US20210107913A1
公开(公告)日:2021-04-15
The present invention relates to a compound of formula (I), wherein X
1
, X
2
and X
3
are, independently of each other, N or CH; with the proviso that at least two of X
1
X
2
and X
3
are N; Y is N or CH; W is H or F; with the proviso that when W is F, then Xi, X
2
and X
3
are N; R
1
and R
2
are independently of each other (i) a morpholinyl of formula (II) wherein the arrow denotes the bond in formula (I); and wherein R
3
and R
4
are independently of each other H, C
1
-C
3
alkyl optionally substituted with one or two OH, C
1
-C
2
fluoroalkyl, C
1
-C
2
alkoxy, C
1
-C
2
alkoxyC
1
-C
3
alkyl, CN, or C(O)O—C
1
-C
2
alkyl; or R
3
and R
4
form together a bivalent residue —R
5
R
6
— selected from C
1
-C
3
alkylene optionally substituted with 1 to 4 F, —CH
2
—O—CH
2
—, —CH
2
—NH—CH
2
—, or any of the structures wherein the arrows denote the bonds in formula (II); or (ii) a saturated 6-membered heterocyclic ring Z selected from thiomorpholinyl and piperazinyl, optionally substituted by 1 to 3 R
7
; wherein R
7
is independently at each occurrence C
1
-C
3
alkyl optionally substituted with one or two OH, C
1
-C
2
fluoroalkyl, C
1
-C
2
alkoxyC
1
-C
3
alkyl, C
3
-C
6
cycloalkyl; or two R
7
substituents form together a bivalent residue —R
8
R
9
— selected from C
1
-C
3
alkylene optionally substituted with 1 to 4 F, —CH
2
—O—CH
2
— or —O—CH
2
CH
2
—O—; with the proviso that at least one of R
1
and R
2
is a morpholinyl of formula II; and prodrugs, metabolites, tautomers, solvates and pharmaceutically acceptable salts thereof, for use in a method of treating a skin disorder in a subject, wherein said skin disorder is a genodermatosis, a vascular anomaly or a skin disorder selected from scleroderma, sclerodermatous chronic graft-versus-host disease, lichen sclerosus, lichen planus, lichen ruber planus and scars.