This invention discloses a group of compounds of formula (I)
wherein R¹ is hydrogen, halo, C1-4 alkyl, C1-4 alkoxy COOR⁴ (R⁴ is H or C1-4 alkyl) or trifluoromethyl; R², R⁵ and R⁶ are the same or different and can be hydrogen, hydroxy, OCOR⁷ (wherein R⁷ is hydrogen, C1-4 alkyl, phenyl optionally substituted) or halo; and R³ is hydrogen, COR⁴, C3-6 cycloalkyl or C1-4 alkyl or alkenyl; R² may also be a phosphate group and pharmaceutically acceptable salts thereof which have been found to have analgesic activity. In addition, these compounds have antiinflammatory, antipyretic, antihypertensive and vasodilatory activity in varying degrees. Some of these compounds also have antiprotozoal and antiviral properties.
本发明公开了一组式 (I) 的化合物
其中 R¹ 是氢、卤素、C1-4 烷基、C1-4 烷氧基 COOR⁴(R⁴ 是 H 或 C1-4 烷基)或三
氟甲基;R²、R⁵ 和 R⁶ 可以相同或不同,可以是氢、羟基、OCOR⁷(其中 R⁷ 是氢、C1-4 烷基、任选取代的苯基)或卤素;和 R³ 是氢、COR⁴、C3-6 环烷基或 C1-4 烷基或烯基;R² 也可以是
磷酸基团及其药学上可接受的盐类,它们已被发现具有镇痛活性。此外,这些化合物还具有不同程度的抗炎、解热、降血压和血管扩张活性。其中一些化合物还具有抗原虫和抗病毒特性。