[EN] PROCESS FOR THE PRODUCTION OF SUBSTITUTED 2-[2-(PHENYL) ETHYLAMINO]ALKANEAMIDE DERIVATIVES<br/>[FR] PROCÉDÉ DE PRODUCTION DE DÉRIVÉS DE 2-[2-(PHÉNYL) ÉTHYLAMINO]ALCANEAMIDE SUBSTITUÉS
申请人:NEWRON PHARM SPA
公开号:WO2020212352A1
公开(公告)日:2020-10-22
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 Formula (A) group where Ro 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方法:其中R为(C3-C10)烷基,或ω-三氟(C3-C10)烷基;R1和R2分别为氢、羟基、(C1-C8)烷氧基、(C1-C8)烷基硫醚、卤素、三氟甲基或2,2,2-三氟乙基;或者R1和R2中的一个位于R-O-基的邻位,并与相同的R-O-一起表示一个Ro为(C2-C9)烷基的式(A)基团;R3和R4分别为氢、(C1-C4)烷基;或者R4为氢且R5为从-CH2-OH、-CH2-O-(C1-C6)烷基、-CH(CH3)-OH、-(CH2)2-S-CH3、苄基和4-羟基苄基中选择的基团;或者R4和R5与相邻的碳原子一起形成一个(C3-C6)环烷基残基;R5和R6独立地为氢或(C1-C6)烷基;或者与相邻的氮原子一起形成一个含有一个额外杂原子的5-6元单环饱和杂环,该额外杂原子可选择在-O-、-S-和-NR7-中,其中R7为氢或(C1-C6)烷基;并且在R、R1、R2、R3、R4、R5和R6中的一个或多个氢原子,优选在R基中,可选择用氘原子取代。