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IJC-B Vol.50B(12) December 2011] >

Title: Synthesis and antimicrobial activity of novel spiro-isoxazolyl oxazolidin-4-one-[5,51]-1,2,4-oxadiazolines and thiazolidin-4-one-[5,51]-1,2,4-oxadiazolines
Authors: Rajanarendar, E
Reddy, A Siva Rami
Reddy, K Govardhan
Raju, S
Keywords: Spiro-isoxazolyl oxazolidin-4-one[5,51]-1,2,4-oxadiazolines
Spiro isoxazolyl thiazolidin-4-one[5,51]-1,2,4-oxadiazolines
Antimicrobial activity
Issue Date: Dec-2011
Publisher: NISCAIR-CSIR, India
Abstract: The synthesis of novel isoxazolyl 1,6-dioxa-2,4,9-triazaspiro[5,51]-non-2-ene-8-ones 4 and isoxazolyl 1-oxa-6-thia-2,4,9-triazaspiro[5,51]-non-2-ene-8-ones 6 analogs is described. Reaction of N-1-(3,5-dimethyl-4-isoxazolyl)-2-chloroacetamide 2 with arylisocyanates yields 3-(3,5-dimethyl-4-isoxazolyl)-2-arylimino-1,3-oxazolan-4-ones 3. Cycloaddition of 3 with benzonitrile oxides furnishes novel spiro isoxazolyl oxazolidin-4-one[5,51]-1,2,4-oxadiazolines 4. Reaction of 2 with arylisothiocyanates affords 3-(3,5-dimethyl-4-isoxazolyl)-2-arylimino-1,3-thiazolan-4ones 5. Cycloaddition of 5 with benzonitrile oxides yields novel spiro isoxazolyl thiazolidin-4-one[5,51]-1,2,4-oxadiazolines 6. All the new products have been characterized by elemental analyses, IR, 1H NMR and mass spectral studies. Compounds 4 and 6 have been screened for their antimicrobial activity.
Page(s): 1800-1806
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0983(Online); 0376-4699(Print)
Source:IJC-B Vol.50B(12) December 2011]

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