Posted by admin on Aug 1, 2010 in |
Novel 2- Aminothiazole derivatives were synthesized by the reaction of 2-aminothiazole (1) with chloroacetylchloride in presence of K2CO3 in chloroform afforded 2- chloro- N- (thiazol – 2- yl) acetamide (2). Compound (2) on condensation with substituted phenols in presence of K2CO3 in acetone afforded the title compound (3a-g). The chemical structures of the synthesized compounds were elucidated on the basis of IR, 1H NMR data. The synthesized compounds were screened for antibacterial and antifungal activity among them the compound 3c and 3d have shown significant inhibition of bacterial and fungal growth....
Read More
Posted by admin on Jun 1, 2010 in |
Reaction of 1- (1- benzyl- 1H- benzo [d] imidazol- 2- yl) hydrazine (1) with 3-aryl-1-phenyl-1H-pyrazole-4-carbaldehydes (2a-f) in ethanol yielded the corresponding Schiff bases (3a-f). Further, cyclization of compounds 3a- f with thioglycollic acid in benzene in presence of anhydrous ZnCl2 furnished desired novel compounds 3- (1 – Benzyl – 1h – Benzo [D] Imidazol – 2 – L Amino) – 2 – (3 – Aryl – 1- Phenyl – 1h – Pyrazol – 4 – Yl) Thiazolidin – 4- Ones (4a- f) in 41-65% yield. All the synthesized compounds were screened for antibacterial and antifungal activities. Among the synthesized compounds 3b, 3d, 4a and 4f have shown good activity against bacteria P. aeruginosa, S. aureus and P. vulgaris, where as other compounds have shown moderate to poor activity against all the organisms. The compounds 3a and 3c exhibited good activity against fungal strains A. niger and A. flavus. All remaining synthesized compounds exhibited moderate to poor activity against all the organisms. The structures of synthesized compounds have been established...
Read More
Posted by admin on Feb 1, 2010 in |
The antimicrobial activities of aqueous, ethanolic and petroleum ether extracts of the leaves of Basella rubra were evaluated in the present study by measuring the inhibition zones using Cup Plate Diffusion method. The inhibition zones were significantly different (P<0.001) in each plant extract. The ethanolic extract showed maximum activity with zone of inhibition (14.3±1.82 mm) against E.coli, followed by aqueous extract (13.4±1.2 mm) and petroleum ether (5.6±0.62 mm) at a concentration of 50g/ml. Ciprofloxacin was used as the standard drug having zones of inhibition(17±0.34 mm) against E.coli and 19±0.18 mm against A. niger. Microbial inhibition was in the order E.coli (12.57±0.99), A. niger (11.68±0.71), V. cholera (11.42±0.60), S. aureus (10.71±0.46), S. typhi (9.80±0.90) , respectively with all the extracts. The extracts were not able to inhibit the growth of P....
Read More
Posted by admin on Aug 31, 2025 in |
Peptides are naturally occurring biologics, which provide essential functions as hormones, growth factors, biological messengers, anti-infective, neurotransmitters, and antimicrobials. Peptide hormones such as insulin, vasopressin, oxytocin, and gonadotropin-releasing hormone have significantly accelerated advances in modern drug development fields, including biology, chemistry, pharmacology, and other cutting-edge technologies. This review article described the peptides, their different sources and production processes, and how they are synthesized. Peptides are highly desirable as therapeutic agents due to their unique properties, which are determined by their physicochemical and proteolytic stability profiles. Numerous techniques are being developed to enhance the therapeutic profile of peptides, such as side chain modification, cyclization, N-methylation, peptoids, and substitution with D-amino acids inclusion in delivery systems and halogenation. Peptides are therapeutically used in the management of several diseases; the potential range of peptide-based medications is being extended to new targets by ongoing...
Read More
Posted by admin on Jun 30, 2025 in |
Acne vulgaris is a multifactorial skin disorder of pilosebaceous unit which majorly affects teenagers, but it can continue into adulthood and cause aesthetical as well as psychological problems. This review article enlightens the knowledge related to cause and treatment of acne vulgaris. Several factors which are involved in the development of acne vulgaris are hormonal activity, sebum production, follicular epidermal hyperproliferation, colonization with Propioni-bacterium acnes (P. acnes) and inflammation. There are several treatment methods available for acne, although some new therapeutic agents have been introduced during the last few years; synthetic drugs still remain the best option in the treatment of acne. However, rapid appearance of antibiotic resistance and high re ocurrence rates have led to a search for alternatives in nature. The use of herbal drugs in prevention and treatment of acne vulgaris nowadays increased because of their efficiency, availability and lesser side effects than synthetic drugs. Some common used topical herbal remedies with significant anti-inflammatory activities antimicrobial activities have mentioned in this review article include tea tree...
Read More
