Synthesis of Aldehydo Sugar (4-oxoquinazolin-2-yl)hydrazones and their transformation into 1-(alditol-1-yl)-1,2,4-triazolo-[4,3-<i>a</i>]quinazolin-5(4<i>H</i>)-ones
作者:Mohamed A. Saleh、Mohamed F. Abdel-Megeed、Mohamed A. Abdo、Abdel-Basset M. Shkor
DOI:10.1002/jhet.5570400111
日期:2003.1
A series of the aldehydo-sugar hydrazones 4a-d and 5a-d were prepared by the reaction of 2-hydrazino-quinazolin-4(3H)-one (1) and 3-ethyl-2-hydrazinoquinazolin-4(3H)-one (2) with aldoses 3a-d. Treatment of hydrazones 4a-d and 5a-d with acetic anhydride in pyridine gave hydrazone acetates 6a-d and 7a-d. Compounds 7a-d were also prepared by ethylation of 6a-d. Reaction of compounds 4a-d and 5a-d with