Synthesis of Schiff bases of 4-(4-aminophenyl)-morpholine as potential antimicrobial agents.
In the present study, a novel series of Schiff bases of 4-(4-aminophenyl)-morpholine were synthesised and characterised by IR, 1H-NMR, 13C-NMR, Mass spectral and elemental analysis. The compounds were screened for antibacterial (Staphylococcus aureus (ATCC 9144), Staphylococcus epidermidis (ATCC 155), Bacillus cereus (ATCC 11778), Micrococcus luteus (ATCC 4678), and Escherichia coli (ATCC 25922)) and antifungal (Candida albicans (ATCC 2091) and Aspergillus niger (ATCC 9029)) activities. The minimum inhibitory concentrations of the compounds were also ascertained by agar streak dilution method. 4-(4-(4-Hydroxy-benzylidene-imino)phenyl)-morpholine (7) was found to be the most potent antimicrobial activity with MIC of 25, 19, 21, 16, 29, 20 and 40 microg/ml against S. aureus, S. epidermidis, B. cereus, M. luteus, E. coli, C. albicans and A. niger, respectively. All the other compounds exhibited moderate activity against the bacterial and fungal organisms tested.
Panneerselvam
Perumal
P
Department of Pharmaceutical Chemistry, C. L. Baid Metha College of Pharmacy, Old Mahabalipuram Road, Thorapakkam Chennai 600096, Tamilnadu, India. pps2k2000@yahoo.co.in
Nair
Rajasree R
RR
Vijayalakshmi
Gudaparthi
G
Subramanian
Ekambaram Harihara
EH
Sridhar
Seshaiah Krishnan
SK
D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D000935:Antifungal Agents / Q000138:chemical synthesis / Q000494:pharmacology; D001234:Aspergillus niger / Q000187:drug effects; D001409:Bacillus cereus / Q000187:drug effects; D002176:Candida albicans / Q000187:drug effects; D004926:Escherichia coli / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D016982:Micrococcus luteus / Q000187:drug effects; D009025:Morpholines / Q000138:chemical synthesis* / Q000494:pharmacology; D009578:Nitrobenzenes / Q000138:chemical synthesis* / Q000494:pharmacology; D012545:Schiff Bases / Q000138:chemical synthesis* / Q000494:pharmacology; D013211:Staphylococcus aureus / Q000187:drug effects; D013212:Staphylococcus epidermidis / Q000187:drug effects; D013329:Structure-Activity Relationship
C502286:4-(4-nitrophenyl)morpholine; D000900:Anti-Bacterial Agents; D000935:Antifungal Agents; D009025:Morpholines; D009578:Nitrobenzenes; D012545:Schiff Bases