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7450392 
Journal Article 
Syntheses of the ammonium salts of 7-carbamate derivatives of quercetin 
Wu, C; Cheng, Li; Li, Y; Guo, D; Yu, S; Wu, X; Wei, Y 
2007 
1 
Letters in Organic Chemistry
ISSN: 1570-1786 
BENTHAM SCIENCE PUBL LTD 
SHARJAH 
4 
5 
366-369 
English 
WOS:000249113000014 
A series of 7-carbamate derivatives of quercetin-were synthesized. Using dichlorodiphenylmethane and benzyl bromide to partly protect the hydroxyl groups, the protected quercetin then reacted with amino acid ester isocyanates, de-protection the hydroxyls with hydrogen using a palladium on carbon catalyst, then treating with ammonia gas to give the ammonium salts of 7-carbamate derivatives of quercetin. 
quercetin; 7-carbamate derivatives of quercetin; dichlorodiphenylmethane; isocyanate; ammonium salt 
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