Synthesis, in-vitro α-glucosidase inhibition, antioxidant, in-vivo antidiabetic and molecular docking studies of pyrrolidine-2,5-dione and thiazolidine-2,4-dione derivatives
摘要:
alpha-Glucosidase is considered as a therapeutic target for the treatment of type 2 diabetes mellitus (DM2). In current study, we synthesized pyrrolidine-2,5-dione (succinimide) and thiazolidine-2,4-dione derivatives and evaluated for their ability to inhibit alpha-Glucosidase. Pyrrolidine-2,5-dione derivatives (11a-o) showed moderate to poor alpha-glucosidase inhibition. Compound 11o with the IC50 value of 28.3 +/- 0.28 mu M emerged as a good inhibitor of alpha-glucosidase. Thiazolidine-2,4-dione and dihydropyrimidine (TZD-DHPM) hybrids (22a-c) showed excellent inhibitory activities. The most active compound 22a displayed IC50 value of 0.98 +/- 0.008 mu M. Other two compounds of this series also showed activity in low micromolar range. The in-vivo antidiabetic study of three compounds 11n, 11o and 22a were also determined using alloxan induced diabetes mice model. Compounds 11o and 22a showed significant hypoglycemic effect compared to the reference drug. In-vivo acute toxicity study showed the safety of these selected compounds. In-silico docking studies were carried out to rationalize the in-vitro results. The binding modes and bioassay results of TZD-DHPM hybrids showed that interactions with important residues appeared significant for high potency.
The development of an ecofriendly procedure for alkaline metal (II) sulfate promoted synthesis of<i>N</i>,<i>N</i>â²-dimethyl substituted (unsubstituted)-4-aryl-3,4-dihydropyrimidones (thiones) and corresponding bis-analogues in aqueous medium: Evaluation by green chemistry metrics
作者:Chhanda Mukhopadhyay、Arup Datta
DOI:10.1002/jhet.283
日期:——
Different alkalinemetal (II) sulfates were used as catalysts for the N,N′-dimethylsubstituted as well as unsubstituted 4-aryl-3,4-dihydropyrimidones (thiones) and their correspondingbis-analogues in aqueousmedium. Among the various salts, MgSO4·7H2O (Epsom salt) proved to be the best catalyst giving the desired products in good to excellent yields. This catalyst enables the construction of a series
A general, efficient and green method for the synthesis of dihydropyrimidinones is described under mild conditions employing low melting mixtures of L-(+)-tartaric acid and urea derivatives as a novel reaction medium. The melt plays a triple role: as solvent, as catalyst and as reactant, furnishing highly functionalized dihydropyrimidinones in good to excellent yields.
Dowex-promoted general synthesis of N,N′-disubstituted-4-aryl-3,4-dihydropyrimidinones using a solvent-free Biginelli condensation protocol
作者:Kamaljit Singh、Divya Arora、Sukhdeep Singh
DOI:10.1016/j.tetlet.2006.04.061
日期:2006.6
Dowex-50W ion exchange resin-promoted solvent-free heating of an intimate mixture of an aldehyde, an active methylene compound and N,N'-dimethylurea furnished the title compounds in moderate to good yields. (c) 2006 Elsevier Ltd. All rights reserved.
Synthesis, in-vitro α-glucosidase inhibition, antioxidant, in-vivo antidiabetic and molecular docking studies of pyrrolidine-2,5-dione and thiazolidine-2,4-dione derivatives
alpha-Glucosidase is considered as a therapeutic target for the treatment of type 2 diabetes mellitus (DM2). In current study, we synthesized pyrrolidine-2,5-dione (succinimide) and thiazolidine-2,4-dione derivatives and evaluated for their ability to inhibit alpha-Glucosidase. Pyrrolidine-2,5-dione derivatives (11a-o) showed moderate to poor alpha-glucosidase inhibition. Compound 11o with the IC50 value of 28.3 +/- 0.28 mu M emerged as a good inhibitor of alpha-glucosidase. Thiazolidine-2,4-dione and dihydropyrimidine (TZD-DHPM) hybrids (22a-c) showed excellent inhibitory activities. The most active compound 22a displayed IC50 value of 0.98 +/- 0.008 mu M. Other two compounds of this series also showed activity in low micromolar range. The in-vivo antidiabetic study of three compounds 11n, 11o and 22a were also determined using alloxan induced diabetes mice model. Compounds 11o and 22a showed significant hypoglycemic effect compared to the reference drug. In-vivo acute toxicity study showed the safety of these selected compounds. In-silico docking studies were carried out to rationalize the in-vitro results. The binding modes and bioassay results of TZD-DHPM hybrids showed that interactions with important residues appeared significant for high potency.