PROCESS FOR THE PRODUCTION OF SUBSTITUTED 2-[2-(PHENYL)ETHYLAMINO]ALKANEAMIDE DERIVATIVES
申请人:Newron Pharmaceuticals S.p.A.
公开号:US20220185766A1
公开(公告)日:2022-06-16
The present invention refers to a process for preparing a compound of formula (I) or a pharmaceutically acceptable salt thereof: wherein R is (C
3
-C
10
)alkyl, or ω-trifluoro(C
3
-C
10
)alkyl; R
1
and R
2
are, independently, hydrogen, hydroxy, (C
1
-C
8
) alkoxy, (C
1
-C
8
) alkylthio, halo, trifluoromethyl or 2,2,2-trifluoroethyl; or one of R
1
and R
2
is in ortho position to the R—O— group and, taken together with the same R—O—, represents a Formula (A) group where R
0
is (C
2
-C
9
)alkyl; R
3
and R
4
are, independently, hydrogen, (C
1
-C
4
)alkyl; or R
4
is hydrogen and R
5
is a group selected from —CH
2
—OH, —CH
2
—O—(C
1
-C
6
)alkyl, —CH(CH
3
)—OH, —(CH
2
)
2
—S—CH
3
, benzyl and 4-hydroxybenzyl; or R
4
and R
5
, taken together with the adjacent carbon atom, form a (C
3
-C
6
)cycloalkyl residue; R
5
and R
6
are independently hydrogen or (C
1
-C
6
)alkyl; or taken together with the adjacent nitrogen atom form a 5-6 membered monocyclic saturated heterocycle, optionally containing one additional heteroatom chosen among —O—, —S— and —NR
7
— where R
7
is hydrogen or (C
1
-C
6
) alkyl; and wherein optionally one or more hydrogen atom in the groups R, R
1
, R
2
, R
3
, R
4
, R
5
and R
6
, preferably in the R group, can be substituted by a deuterium atom.