Ethyl benzoate bearing pyrrolizine/indolizine moieties: Design, synthesis and biological evaluation of anti-inflammatory and cytotoxic activities.

Abstract:

:Two new series of ethyl benzoate bearing pyrrolizine and indolizine moieties 8-11 were synthesized and evaluated for their anti-inflammatory and anticancer activities. Among these derivatives, compounds 9a, 10b and 11b displayed in vivo anti-inflammatory and analgesic activity comparable to ibuprofen. The acute ulcerogenicity and histopathological studies revealed better GIT safety profile than ibuprofen. Mechanistic study of these compounds revealed inhibitory activity against COX-1/2 with preferential inhibition of COX-2. Evaluation of cytotoxic activity of the new compounds using MTT assay revealed potent to moderate activity against three human (MCF-7, A2780 and HT29) cancer cell lines (IC50 = 0.02-23.35 µM). Compounds 9a, 10a,b and 11a,b exhibited high cytotoxic selectivity against MCF-7 cells (SI = 4-84). Although the indolizine bearing derivatives 8-11b exhibited higher selectivity to COX-2 than their corresponding pyrrolizine analogs 8-11a, but they were less active and selective against MCF-7 cells. Cell cycle analysis and annexin V-FITC/PI assay revealed G1 cell cycle arrest and induction of apoptosis in MCF-7 cells by compound 9a. The docking study revealed nice fitting of the new compounds into the active site of COX-1/2 with higher affinity to COX-2. Compounds 8-11 displayed drug-likeness score in the range of 0.67-1.56 compared to 1.06 for licofelone. These results suggested that compounds 9a, 10b and 11b could be promising agents in future research as anti-inflammatory and anticancer agents.

journal_name

Bioorg Chem

journal_title

Bioorganic chemistry

authors

Attalah KM,Abdalla AN,Aslam A,Ahmed M,Abourehab MAS,ElSawy NA,Gouda AM

doi

10.1016/j.bioorg.2019.103371

subject

Has Abstract

pub_date

2020-01-01 00:00:00

pages

103371

eissn

0045-2068

issn

1090-2120

pii

S0045-2068(19)31501-9

journal_volume

94

pub_type

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