申请人:Research Corporation Technologies, Inc.
公开号:EP1695703A2
公开(公告)日:2006-08-30
The present invention describes a method for alleviating pain in a patient suffering from chronic pain comprising administering to said patient an analgesic effective amount of a compound of the formula:
wherein
R is hydrogen, lower alkyl, lower alkenyl, lower alkynyl, aryl, aryl lower alkyl, heterocyclic, heterocyclic lower alkyl, lower alkyl heterocyclic, lower cycloalkyl, lower cycloalkyl lower alkyl, and R is unsubstituted or is substituted with at least one electronic withdrawing group or electron donating group;
R1 is hydrogen or lower alkyl, lower alkenyl, lower alkynyl, aryl lower alkyl, aryl, heterocyclic lower alkyl, heterocyclic, lower alkyl heterocyclic, lower cycloalkyl, lower, cycloalkyl lower alkyl, each unsubstituted or substituted with an electron donating group or an electron withdrawing group; and
R2 and R3 are independently hydrogen, lower alkyl, lower alkenyl, lower alkynyl, aryl lower alkyl, halo, heterocyclic, heterocyclic lower alkyl, lower alkyl heterocyclic, lower cycloalkyl, lower cycloalkyl lower alkyl, or Z-Y wherein R2 and R3 may be unsubstituted or substituted with at least one electron withdrawing group or electron donating group wherein the electron donating group or electron withdrawing group is acyclic; and wherein heterocyclic in R2 and R3 is furyl, thienyl, pyrazolyl, pyrrolyl, imidazolyl, indolyl, thiazolyl, oxazolyl, isothiazolyl, isoxazolyl, piperidyl, pyrrolinyl, piperazinyl, quinolyl, triazolyl, tetrazolyl, isoquinolyl, benzofuryl, benzothienyl, morpholinyl, benzoxazolyl, tetrahydrofuryl, pyranyl, indazolyl, purinyl, indolinyl, pyrazolindinyl, imidazolinyl, imidazolindinyl, pyrrolidinyl, furazanyl,
N-methylindolyl, methylfuryl, pyridazinyl, pyrimidinyl, pyrazinyl, epoxy, aziridino, oxetanyl or azetidinyl;
Z is O, S, S(O)a, NR6', or PR4;
Y is hydrogen, lower alkyl, aryl, aryl lower alkyl, lower alkenyl, lower alkynyl, heterocyclic, heterocyclic lower alkyl, and Y may be unsubstituted or substituted with an electron donating group or an electron withdrawing group, or
ZY taken together is NR4NR5R7, NR4OR5, ONR4R7, OPR4R5, PR4OR5, SNR4R7, NR4SR7, SPR4R5, PR4SR7, NR4PR5R6 or PR4NR5R7,
R6' is hydrogen, lower alkyl, lower alkenyl, or lower alkynyl and R4 may be unsubstituted or substituted with an electron withdrawing group or electron donating group;
R4, R5 and R6 are independently hydrogen, lower alkyl, aryl, aryl lower alkyl, lower alkenyl, or lower alkynyl, wherein R4, R5 and R6 may be unsubstituted or substituted with an electron withdrawing group or an electron donating group; and
R7 is COOR8, COR8, hydrogen, lower alkyl, aryl, aryl lower alkyl, lower alkenyl or lower alkynyl, which R7 may be unsubstituted or substituted with an electron withdrawing group or electron donating group;
R8 is hydrogen or lower alkyl, or aryl lower alkyl, and the aryl or alkyl group may be unsubstituted or substituted with an electron withdrawing group or an electron donating group; and
n is 1-4; and
a is 1-3.
本发明描述了一种减轻慢性疼痛患者疼痛的方法,包括向所述患者施用镇痛有效量的式化合物:
其中
R是氢、低级烷基、低级烯基、低级炔基、芳基、芳基低级烷基、杂环、杂环低级烷基、低级烷基杂环、低级环烷基、低级环烷基低级烷基,R是未取代的或被至少一个电子汲取基团或电子捐赠基团取代的;
R1 是氢或低级烷基、低级烯基、低级炔基、低级芳烷基、芳基、杂环低级烷基、杂环、低级烷基杂环、低级环烷基、低级环烷基低级烷基,各自未被取代或被一个电子捐赠基团或一个电子汲取基团取代;以及
R2 和 R3 独立地为氢、低级烷基、低级烯基、低级炔基、芳基低级烷基、卤代、杂环、杂环低级烷基、杂环低级烷基、低级环烷基、低级环烷基低级烷基或 Z-Y 其中 R2 和 R3 可以未被取代或被至少一个电子汲取基团或电子捐赠基团取代,其中电子捐赠基团或电子汲取基团为非环;其中 R2 和 R3 中的杂环基为呋喃基、噻吩基、吡唑基、吡咯基、咪唑基、吲哚基、噻唑基、噁唑基、异噻唑基、异噁唑基、哌啶基、吡咯啉基、哌嗪基、喹啉基、三唑基、四唑基、异噻唑基、异噁唑基、四唑基、异喹啉基、苯并呋喃基、苯并噻吩基、吗啉基、苯并恶唑基、四氢呋喃基、吡喃基、吲唑基、嘌呤基、吲哚啉基、吡唑啉基、咪唑啉基、咪唑啉基、吡咯烷基、呋喃基、
N-甲基吲哚基、甲基糠基、哒嗪基、嘧啶基、吡嗪基、环氧基、氮丙啶基、氧杂环丁基或氮杂环丁基;
Z 是 O、S、S(O)a、NR6' 或 PR4;
Y 是氢、低级烷基、芳基、芳基低级烷基、低级烯基、低级炔基、杂环、杂环低级烷基,且 Y 可以是未取代的,也可以是被电子捐赠基团或电子撤回基团取代的,或
ZY 合在一起是 NR4NR5R7、NR4OR5、ONR4R7、OPR4R5、PR4OR5、SNR4R7、NR4SR7、SPR4R5、PR4SR7、NR4PR5R6 或 PR4NR5R7、
R6'是氢、低级烷基、低级烯基或低级炔基,R4 可以是未取代的,也可以是被取电子基团或供电子基团取代的;
R4、R5 和 R6 独立地是氢、低级烷基、芳基、芳基低级烷基、低级烯基或低级炔基,其中 R4、R5 和 R6 可以未被取代或被取电子基团或供电子基团取代;以及
R7 是 COOR8、COR8、氢、低级烷基、芳基、芳基低级烷基、低级烯基或低级炔基,其中 R7 可以未被取代或被取电子基团或供电子基团取代;
R8 是氢或低级烷基或芳基低级烷基,芳基或烷基可以是未取代的,也可以是被取电子基团或供电子基团取代的;以及
n 为 1-4;和
a 为 1-3。