Ether derivative of 4-[3H] -quinazolinone, a process for the preparation thereof, and pharmaceutical compositions
申请人:SPOFA
spojené podniky pro zdravotnickou vyrobu
公开号:EP0367944A2
公开(公告)日:1990-05-16
The invention relates to 3-[2-(2′,4′-difluoro-4-biphenylyloxy)-ethyl]-4-[3H]-quinazolinone and its acid addition salts, particularly the hydrochloride, to a process for preparing these compounds and intermediates thereof, and to pharmaceutical compositions comprising these compounds as active ingredients. The ether derivative of 4-[3H]-quinazolinone according to the invention possesses considerably higher analgesic activity and lower acute toxicity than aminophenazone, ibuprofen, acetylosalicylic acid and paracetamol.
本发明涉及3-[2-(2′,4′-二氟-4-联苯氧基)-乙基]-4-[3H]-喹唑啉酮及其酸加成盐,特别是盐酸盐,涉及制备这些化合物及其中间体的工艺,还涉及含有这些化合物作为活性成分的药物组合物。根据本发明,4-[3H]-喹唑啉酮的醚衍生物比氨基比林、布洛芬、乙酰水杨酸和扑热息痛具有更高的镇痛活性和更低的急性毒性。