4). Compound no. 1 (10–50 μg/ml) & compound no. 2 (10–50 μg/ml) was able to inhibit the gastric Hydrogen Potassium ATPase activity in comparison to omeprazole with an IC50 value of 101.22 μg/ml & 55.4 μg/ml respectively. Positive control used during experiment was omeprazole (10–50 μg/ml) and it was able to reduce the enzyme activity with an IC50 value of 30.24 μg/ml (Table 4). A. squamosa is known for its different types of medicinal properties, but still a lot of work is required to establish its antiulcer activity. In our present work, we have tested antiulcer activity of ethanolic extract of A. squamosa
whole plant and have established a better antiulcer activity. The results obtained are comparable to Doxorubicin standard drug omeprazole. Isolated compounds (compound no.1&2) were tested for Hydrogen Potassium ATPase activity & they are showing a very good antiulcer activity. All authors have none to declare. The author gratefully acknowledges the expert guidance of Dr. Y. Kumar and Dr. S. Sadish Kumar for their valuable suggestions. Author also acknowledges the necessary platform & financial assistance for research provided by I.T.S Paramedical (Pharmacy) College, Muradnagar, Ghaziabad. “
“Isoxazoles are one of the five membered categorised heterocycles having two different hetero atoms in their cyclic Ribociclib supplier skeleton. In recent years there has been renewed interest in them due to their uses as pharmaceutical1 and pesticide.2 and 3
Analeptic activity associated with toxicity has been found
in numerous N-substituted amides of some isoxazole carboxylic acids. A number of 5-isoxazolone and 4-isoxazolone dyes have been reported in the literature as photographic sensitizers and super sensitizers.4, 5, 6, 7, 8 and 9 According to Barnes et al,10 the highly enolised diketones which posses alternative H-bonded (tautomeric structures),a rigorous study on the direction of enolisation was a governing factor in the ratio of the products obtained as well as the site selectivity,11 and there is a possibility of the formation of the two regioisomers of isoxazoles by the nucleophillic attack of hydroxylamine either on α or γ-carbonyl of diketoester. We report herein a convenient, rapid and general method for the synthesis of 5-(substituted phenyl)-4-methyl-3yl-(imidazolidine-1yl TCL methyl, 2-ylidene nitro imine)-isoxazole 6a–k (Table 1) using 5 synthetic stages in the Scheme 1. 5-(substituted phenyl)-4-methyl-3yl-(imidazolidine-1yl methyl, 2-ylidene nitro imine)-Isoxazole were obtained in good to excellent yields, and screened for fungal activity (Table 2). 1-Phenyl-propan-1-one (13 g, 0.1 mol) was added drop wise over a period of 10 min to a solution of sodium methoxide (5.5 g, 0.1 mol) was added drop wise without external cooling. Freshly prepared hydroxylamine hydrogen-sulphate (HAS) ins sulfuric acid was added to the above solution and the reaction mixture was heated to reflux for 2 h and the reaction was monitored by TLC (hexane: EtOAc, 90:10).