Semicarbazide derivatives, processes for preparation thereof and pharmaceutical composition comprising the same
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0168005A2
公开(公告)日:1986-01-15
A compound of the formula:
wherein
R1 is hydrogen,
R2 is hydrogen, lower alkyl, ar(lower)alkyl, lower alkenyl or aryl,
R3 is lower alkyl, ar(lower)alkyl, lower alkenyl or aryl, or
R2 and R3 are taken together to form (C2-C6)-alkylidene group optionally substituted with aryl or taken together with the attached nitrogen atom to form a satureted or unsaturated, 5- or 6-membered heterocyclic group optionally substituted with aryl or lower alkyl; or
R1 and R2 are taken together with the attached nitrogen atoms to form a saturated or unsaturated, 5- or 6-membered heterocyclic group or 1,2-diazasplroalkane-1,2-dlyl group,
R3 is hydrogen, lower alkyl, ar(lower)alkyl, lower alkenyl or aryl;
R4 is lower alkyl optionally substituted with di(lower)alkylamino or a heterocyclic group, or a heterocyclic group optionally having suitable substituent(s),
R5 is hydrogen or lower alkyl, and
X is O or S,
and a pharmaceutically acceptable salt thereof may be used as anti-inflammatory and analgesic agents.
式中的化合物:
式中
R1 是氢
R2 是氢、低级烷基、低级烯基或芳基、
R3 是低级烷基、芳(低)烷基、低级烯基或芳基,或
R2 和 R3 结合在一起形成可选择被芳基取代的 (C2-C6)- 亚烷基,或与相连的氮原子结合在一起形成可选择被芳基或低级烷基取代的成熟或不饱和 5 或 6 元杂环基团;或
R1 和 R2 与相连的氮原子一起形成一个饱和或不饱和的 5 或 6 元杂环基团或 1,2-二氮杂四烷基-1,2-二烯丙基基团、
R3 是氢、低级烷基、芳(低)烷基、低级烯基或芳基;
R4 是可选地被二(低)烷基氨基或杂环基取代的低级烷基,或可选具有适当取代基的杂环基、
R5 是氢或低级烷基,以及
X 是 O 或 S、
及其药学上可接受的盐可用作消炎镇痛剂。