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5368-37-6

3-(4-OXO-3,4-DIHYDRO-QUINAZOLIN-2-YL)-PROPIONIC ACID synthesis

6synthesis methods
-

Yield:5368-37-6 91%

Reaction Conditions:

with sodium acetate;acetic anhydride for 0.5 h;Heating;

Steps:

2

A mixture of Compound 2 (1 18 g, 0.5 mol), sodium acetate (46 g, 0.5 mol) in 150 mL of acetic anhydride was heated for 30 mins. The mixture was cooled and diluted with cold water. The resulting precipitate was filtered and collected to provide 3- (4-oxo-3,4-dihydroquinazolin-2-yl)propanoic acid (101 g, yield 91%). 1H NMR (400 MHz, DMSO- d6) δ 7.90 (br s, 1H), 7.73-7.71 (m, 1H), 7.62-7.58 (m, 1H), 7.54-7.50 (m, 1H), 7.30-7.26 (m, 2H), 2.83-2.65 (m, 4H). LC-MS: 219 (M+l).

References:

WO2014/36022,2014,A1 Location in patent:Paragraph 0209-0210