PROCESS FOR THE PRODUCTION OF SUBSTITUTED 2-[2-(PHENYL) ETHYLAMINO]ALKANEAMIDE DERIVATIVES
申请人:Newron Pharmaceuticals S.p.A.
公开号:EP3725769A1
公开(公告)日:2020-10-21
The present invention refers to a process for preparing a compound of formula (I) or a pharmaceutically acceptable salt thereof:
wherein R is (C3-C10)alkyl, or ω-trifluoro(C3-C10)alkyl;
R1 and R2 are, independently, hydrogen, hydroxy, (C1-C8)alkoxy, (C1-C8) alkylthio, halo trifluoromethyl or 2,2,2-trifluoroethyl; or one of R1 and R2 is in ortho position to the R-O- group and, taken together with the same R-O-, represents a
group where R0 is (C2-C9)alkyl;
R3 and R4 are, independently, hydrogen, (C1-C4)alkyl; or R4 is hydrogen and R5 is a group selected from -CH2-OH, -CH2-O-(C1-C6)alkyl, -CH(CH3)-OH, -(CH2)2-S-CH3, benzyl and 4-hydroxybenzyl; or R4 and R5, taken together with the adjacent carbon atom, form a (C3-C6)cycloalkyl residue;
R5 and R6 are independently hydrogen or (C1-C6)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 -NR7- where R7 is hydrogen or (C1-C6) alkyl;
and wherein optionally one or more hydrogen atom in the groups R, R1, R2, R3, R4, R5 and R6, preferably in the R group, can be substituted by a deuterium atom.
本发明涉及一种制备式(I)化合物或其药学上可接受的盐的工艺:
其中R为(C3-C10)烷基或ω-三氟(C3-C10)烷基;
R1 和 R2 独立地为氢、羟基、(C1-C8)烷氧基、(C1-C8)烷硫基、卤代三氟甲基或 2,2,2-三氟乙基;或 R1 和 R2 中的一个位于 R-O- 基团的正交位置,并与相同的 R-O- 结合在一起表示
其中 R0 为 (C2-C9) 烷基;
R3 和 R4 独立地为氢、(C1-C4)烷基;或 R4 为氢,R5 为选自-CH2-OH、-CH2-O-(C1-C6)烷基、-CH(CH3)-OH、-(CH2)2-S-CH3、苄基和 4-羟基苄基的基团;或 R4 和 R5 与相邻碳原子一起形成 (C3-C6)cycloalkyl residue;
R5和R6独立地为氢或(C1-C6)烷基;或与相邻的氮原子一起形成5-6个成员的单环饱和杂环,可选地含有一个额外的杂原子,该杂原子可从-O-、-S-和-NR7-中选择,其中R7为氢或(C1-C6)烷基;
其中 R、R1、R2、R3、R4、R5 和 R6 基团中的一个或多个氢原子,最好是 R 基团中的氢原子,可以被一个氘原子取代。