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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 5
BKCSDE 31(5)
May 20, 2010 

 
Title
Synthesis, Spectral and Antimicrobial Studies
of Some N(2)-Substituted Tetrahydroindazoles
Author
Shanmugasundaram Amirthaganesan, Gopalakrishnan Aridoss, Keun Soo Park, Kwon Taek Lim, Yeon Tae Jeong*
Keywords
Tetrahydroindazoles, Benzothiazolyl, 1(H) Indazoles, Antimicrobial activity
Abstract
A series of N(2)-benzothiazolyl substituted tetrahydroindazoles has been synthesized via cyclic β keto esters. Optimum reaction condition was found as acidic toluene and effect of higher acidity towards substituted hydrazines in situ was described. Synthesized compounds have been achieved as single isomer and characterized by using 1D and 2D NMR spectral reports. Antimicrobial screening was carried out for the synthesized compounds along with a series of N(2)-pyridyl tetrahydroindazoles.1 The results of the in vitro antimicrobial screening studies revealed that compounds 13, 16 against Staphylococcus aureus, 11 against Escherichia coli, 10-12, 16 against Pseudomonas aeruginosa and 12 against Klebsiella pneumoniae recorded almost two-fold better activity compared to the standard drug used.
Page
1135 - 1142
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