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Title: Synthesis of novel isoxazolo[2'',3'':1',2']pyrimido[4',5':4,5]pyrimido- [6,1-b]quinazoline-8-ones and their in vitro anticancer and antimicrobial activities
Authors: Rajanarendar, E
Kishore, B
Ramakrishna, S
Nagaraju, D
Venkateshwarlu, P
Keywords: Isoxazolo[2'',3'':1',2']pyrimido[4',5':4,5]pyrimido[6,1-b]quinazoline-8-ones;One-pot synthesis;Three-component reaction;Anticancer activity;Antimicrobial activity
Issue Date: Oct-2014
Publisher: NISCAIR-CSIR, India
Abstract: Synthesis of novel isoxazolo[2'',3'':1',2']pyrimido[4',5':4,5]pyrimido[6,1-b]quinazoline-8-ones 6a-j, has been achieved by reaction of 5-amino-2-methyl-7-phenyl-7H-isoxazolo[2,3-a] pyrimidin-6-yl cyanides 4, with dimethyl formamide dimethylacetal followed by treatment with anthranilic acids in situ in one-pot. The key intermediate, viz., 5-amino-2-methyl-7-phenyl-7H-isoxazolo[2,3-a]pyrimidin-6-yl cyanide 4 is obtained by reaction of 3-amino-5-methyl isoxazole with aromatic aldehydes and malononitrile by a three-component one-pot process. The newly synthesized compounds 6a-j have been evaluated for their in vitro anticancer and antimicrobial activity. Compounds 6e and 6f exhibit potent anticancer and antimicrobial activity comparable to that of standard drugs.
Page(s): 1275-1283
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-B Vol.53B(10) [October 2014]

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