SYNTHESIS AND ANTIBACTERIAL ACTIVITY OF SOME NOVEL THIOUREA, NAPHTHO[2,3-d]THIAZOLE, QUINAZOLINE AND THIENO[2,3-d]PYRIMIDINE DERIVATIVES CONTAINING SULFONAMIDO MOIETIES
- 1 January 2000
- journal article
- research article
- Published by Informa UK Limited in Phosphorus, Sulfur, and Silicon and the Related Elements
- Vol. 156 (1), 157-171
- https://doi.org/10.1080/10426500008045000
Abstract
P-Substituted sulfamoylphenyl isothiocyanates 1a-d were prepared using reported procedures. The reactivity of 1a-d towards some nitrogen nucleophiles was investigated. Thus, interaction of 1 with aromatic amines and anthranilic acids furnished N1,N3-disubstituted thioureas 2a-c and 3-[4-N-substituted sulphonamido]phenyl-2-thioxo-4-(3H)-quinazolin-4-ones 4a-f, respectively. Alkylation of 4c with ethyl chloroacetate in acetone containing anhydrous potassium carbonate to yield quinazoline 5. Hydrazinolysis of 5 using ethanolic hydrazine hydrate afforded the corresponding acid hydrazide 6. Finally, treatment of 1a,b,d with 2-amind-3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophene yielded thieno[2,3-d]pyrimidines 10a-c bearing sulphonamido moieties. Structures of the new compounds were established by their elemental analyses and spectral data. Also, the most of these compounds were tested in vitro for their antimicrobial activity against some Gram positive and Gram negative bacteria.Keywords
This publication has 7 references indexed in Scilit:
- Immunomodulation by Antibacterial AgentsDrugs, 1993
- Nucleosides 137. Synthetic Modifications at the 2′Position of Pyrrolo[3,2-D]Pyrimidine and Thieno[3,2-D]Pyrimidine C-Nucleosides, Synthesis of “2′-Deoxy-9-Deazzadenosine” and of “9-Deaza ARA-A”Nucleosides and Nucleotides, 1986
- Reactions of 2-hydroxybenzonitrile with isocyanatesJournal of Heterocyclic Chemistry, 1983
- The Antimicrobial Specificity of TryptanthrinPlanta Medica, 1979
- N-Substituted 4-isothiocyanatophenylsulfonamidesCollection of Czechoslovak Chemical Communications, 1974
- Heterocyclen aus CH‐aciden Nitrilen, VIII. 2‐Amino‐thiophene aus methylenaktiven Nitrilen, Carbonylverbindungen und SchwefelEuropean Journal of Inorganic Chemistry, 1966
- The Synthesis of Some S-Substituted-2-mercapto-3-aryl-4-quinazolonesBulletin of the Chemical Society of Japan, 1965