37649-32-4

Upstream product

• 697241-88-6 3-phthalimido-2-styrylquinazolin-4(3H)-one 
• 18600-57-2 2-styryl-4H-3,1-benzoxazin-4-one 
• 525-76-8 2-methyl-4-oxo-3,1-benzoxazine 
• 1898-06-2 3-amino-2-methyl-4-oxoquinazoline 
• 118-92-3 anthranilic acid 
• 1915-02-2 3-(1,3-dihydro-2H-isoindol-2-yl)-2-methylquinazolin-4(3H)-one 

Downstream Products

• 697241-94-4 N-(2-styryl-4-oxo-3H-quinazolin-3-yl)-2-nitrobenzamide 
• 697241-97-7 N-(2-styryl-4-oxo-3H-quinazolin-3-yl)-2-aminobenzamide 

Relevant academic research and scientific papers

Synthesis and biological properties of 4-(3H)-quinazolone derivatives

A new quinazolone series has been designed, and synthesized by the anthranilic acid and different acid derivatives. Their structures have been elucidated on the basis of elemental analyses and spectral studies (IR, 1H NMR, FT-IR and FAB-MS). A

Studies on quinazolines: Part II-Synthesis and antimicrobial evaluation of some 2,2-disubstituted-3,3-biquinazolin-4(3H)-ones

N-(2-Styryl-, 2-p-chlorostyryl- or 2-p-nitrostyryl-4-oxo-3H-quinazolin-3-yl)-2-aminobenzamides 6a-c react with triethyl orthoesters to furnish some new 2-styryl-, 2-p-chlorostyryl- or 2-p-nitrostyryl-2-substituted-3,3-biqui-nazolin-4(3H)-ones (7a-c-9a-c). An alternative synthesis of (7-9)b has been accomplished by reaction of acetylanthranil with 2-amino-2-styryl-, 2-p-chlorostyryl- or 2-p-nitrostyryl-quinazolin-4(3H)-ones 4a-c. The synthesised products are tested for antimicrobial activities using methaqualone as reference standard.