申请人:Hamlyn Richard
公开号:US20100105651A1
公开(公告)日:2010-04-29
Compounds of the formula (I), and pharmaceutically acceptable salts thereof, are found to be antagonists of SNS sodium channels. They are therefore useful as analgesic and neuroprotective agents, formula (I): R
1
represents: (a) -L-A or -L′-A′ wherein L represents a bond or a C
1
-C
6
alkyl, C
2
-C
6
alkenyl or C
2
-C
6
alkynyl moiety, A represents a phenyl, 5- to 10-membered heteroaryl, C
3
-C
6
carbocyclyl or 5- to 10-membered heterocyclyl group, L′ represents a C
1
-C
6
alkyl, C
2
-C
6
alkenyl or C
2
-C
6
alkynyl moiety, and A′ represents -Het-A or —X-A wherein Het represents —O—, —S— or —NR
1
—, and X represents —CO—, —SO—, —SO
2
—, —CO—O—, —CO—S—, —CONR
1
—, —O—CO—, —S—CO— or —NR
1
—CO—, wherein R
1
represents hydrogen or C
1
-C
6
alkyl; (b) -L-CR(A)(A′) or -L-CR(A)(L-A) wherein R is hydrogen or C
1
-C
4
alkyl, A′ is as defined above, each L is the same or different and is as defined above and each A′ is the same or different and is as defined above; (c) -L-A-A′ or -L-A-L-A wherein A′ and L are as defined above and each A is the same or different and is as defined above; or (d) -A-Z-A wherein Z is -Het-L′-, —X-L′-, -L′-Het- or -L′-X—, wherein Het, L′ and X are as defined above and each A is the same or different and is as defined above; J represents —NR
S
—, —O— or a direct bond; R
5
represents hydrogen, C
1
-C
6
alkyl, C
2
-C
6
alkenyl or C
2
-C
6
alkynyl; R
4
is represents hydrogen, C
1
-C
6
alkyl, C
2
-C
6
alkenyl or C
2
-C
6
alkynyl; and either R represents -L-A, -L-A′, -L-A-A′, -L-A-L-A, -L-CR(A)(L-A), -L-CR(A)(A′) or -L-CR(A)(L″) wherein L″ is -Het-L′, —CONH
2
or —CO
2
H, and wherein A′, Het, X and R are as defined above, each L is the same or different and is as defined above, each A is the same or different and is as defined above and R
3
represents hydrogen, C
1
-C
6
alkyl C
2
-C
6
alkynyl or (CO)-L′, wherein L is as defined above or R
2
and R
3
form, together with the nitrogen to which they are attached, a 5- to 10-membered heteroaryl or 5- to 10-membered heterocyclyl ring.
公式(I)的化合物及其药学上可接受的盐被发现是SNS钠通道的拮抗剂。因此,它们可用作镇痛和神经保护剂,公式(I):R1表示:(a)-L-A或-L′-A′,其中L表示键或C1-C6烷基,C2-C6烯基或C2-C6炔基基团,A表示苯基,5-至10-成员杂环芳基,C3-C6环烷基或5-至10-成员杂环基团,L′表示C1-C6烷基,C2-C6烯基或C2-C6炔基基团,A′表示-Het-A或—X-A,其中Het表示—O—,—S—或—NR1—,X表示—CO—,—SO—,—SO2—,—CO—O—,—CO—S—,—CONR1—,—O—CO—,—S—CO—或—NR1—CO—,其中R1表示氢或C1-C6烷基;(b)-L-CR(A)(A′)或-L-CR(A)(L-A),其中R为氢或C1-C4烷基,A′如上所定义,每个L相同或不同,如上所定义,并且每个A′相同或不同,如上所定义;(c)-L-A-A′或-L-A-L-A,其中A′和L如上所定义,每个A相同或不同,如上所定义;或(d)-A-Z-A,其中Z为-Het-L′-,—X-L′-,-L′-Het-或-L′-X—,其中Het,L′和X如上所定义,每个A相同或不同,如上所定义;J表示—NRS—,—O—或直接键;R5表示氢,C1-C6烷基,C2-C6烯基或C2-C6炔基;R4表示氢,C1-C6烷基,C2-C6烯基或C2-C6炔基;而R表示-L-A,-L-A′,-L-A-A′,-L-A-L-A,-L-CR(A)(L-A),-L-CR(A)(A′)或-L-CR(A)(L″),其中L″为-Het-L′,—CONH2或—CO2H,而A′,Het,X和R如上所定义,每个L相同或不同,如上所定义,每个A相同或不同,如上所定义,而R3表示氢,C1-C6烷基,C2-C6炔基或(CO)-L′,其中L如上所定义,或R2和R3共同形成与它们附着的氮原子相连的5-至10-成员杂环芳基或5-至10-成员杂环基团。