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Efficient Synthesis and Evaluation of Ultrasonic Assisted 1, 3-oxazin-2- amines as Encouraging Agents

[ Vol. 18 , Issue. 4 ]


Raj Kumar Thangavelu*, Srinivasan N. and Suresh Kumar Solleti   Pages 391 - 397 ( 7 )


Aims: 1,3- Oxazine-2-amines synthesized by sonochemical method using green catalyst lithium hydroxide monohydrate to enhance effect in reaction time when compared to traditional methods under acoustic energy.

Background: Hostile to microbials accept a noteworthy activity in the treatment of infections to the individuals and at the same time, strange, medication of higher enemy of contamination changes protections in the quality level and may turn into the purpose for the anti-microbial opposition.

Objective: In this assignment, an undertaking has been made to join a couple of auxiliaries of 1, 3- oxazine-2-amines by ultrasonic irradiation with shorter reaction time also their in vitro screening was coordinated against Mycobacterium tuberculosis, Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, Staphylococcus aureus, Aspergillus niger and Candida albicans.

Methods: Five compounds were produced by under ultrasonic illumination within the use of lithium hydroxide monohydrate (LiOH.H2O) as a catalyst, which gave the items in great yields after short response times under mellow conditions The proposed concoction structures were affirmed by various spectroscopic systems like FTIR, 1H NMR and Mass spectroscopy. TLC was utilized to realize that the reactants were depleted and the development of the item happened. Sharp melting point of the compounds concludes the purity. All the molecules assessed for in vitro antibacterial and antifungal exercises. Antibacterial and antifungal exercises were tried utilizing the agar dispersion technique.

Results: From the screening thinks about it was seen that a large portion of the compounds have indicated moderate antibacterial and antifungal inhibition at 500 μg/mL and 100 μg/mL fixations individually. The MIC of the molecules like C (Chloro), N (Nitro) demonstrated promising activity at the conenctration of 1.6 μg/ml and F (Fluoro) – 3.12 μg/ml when appeared differently in relation to measures like Pyrazinamide-3.125μg/ml, Ciprofloxacin 3.125μg/ml, Streptomycin-6.25μg/ml against Mycobacterium tuberculosis.

Conclusion: The results are extremely promising which on further assessments may provoke medicine particles against different microorganisms. Especially, C, N can be considered as a far reaching range master due to its solid development against different microorganisms like Mycobacterium tuberculosis, Staphylococcus aureus, Escherichia coli, Klebsiella pneumonia and Candida albicans.


Ultrasonic, assisted 1, 3-oxazin-2-amines, encouraging agents, sonochemistry, chalcones, thiophene systems.


Department of Pharmaceutical Chemistry, Creative Educational Society’s College of Pharmacy, Kurnool- 518218, Andhra Pradesh, Department of Pharmacy, Annamalai University, Annamalai Nagar, Chidambaram -608002, Department of Pharmacognosy, Creative Educational Society’s College of Pharmacy, Kurnool-518218, Andhra Pradesh

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