Synthesis, cyclooxygenase inhibition and anti-inflammatory evaluation of new 1,3,5-triaryl-4,5-dihydro-1<i>H</i>-pyrazole derivatives possessing methanesulphonyl pharmacophore
作者:Khaled R. A. Abdellatif、Mohammed T. Elsaady、Salah A. Abdel-Aziz、Ahmed H. A. Abusabaa
DOI:10.3109/14756366.2016.1158168
日期:2016.11.1
5-triaryl-4,5-dihydro-1H-pyrazole derivatives 13a-p were synthesized via aldol condensation of 3/4-nitroacetophenones with appropriately substituted aldehydes followed by cyclization of the formed chalcones with 4-methanesulfonylphenylhydrazine hydrochloride. All the synthesized compounds were evaluated for their cyclooxygenase (COX) inhibition, anti-inflammatory activity and ulcerogenic liability
通过将3 / 4-硝基苯乙酮与适当取代的醛进行醛醇缩合,然后将所形成的查耳酮与4-环化,合成了一系列新的1,3,5-三芳基-4,5-二氢-1H-吡唑衍生物13a-p系列。甲磺酰苯肼盐酸盐。对所有合成的化合物的环氧合酶(COX)抑制作用,抗炎活性和致溃疡性进行了评估。与COX-1相比,所有化合物均是更有效的COX-2抑制剂。尽管大多数化合物具有良好的抗炎活性,但与塞来昔布(ED50 = 68.1μmol/ kg)相比,化合物13d,13f,13k和13o是最有效的衍生物(ED50 = 66.5、73.4、79.8和70.5μmol/ kg)。 )。化合物13d,13f,13k和13o(溃疡指数= 3.89、4.86、4.96和3.92,分别比阿司匹林(溃疡指数= 22.75)少4-6倍的致溃疡性,显示出与塞来昔布相似的溃疡作用(溃疡指数= 3.35)。此外,对在COX-2活性位点内的化合物1