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The Formation of 6-Hydroxy- and 7-Hydroxypteridines from 4,5-Diaminopyrimidines and α-Ketoacids and Esters

✍ Scribed by Elion, Gertrude B.; Hitchings, George H.; Russell, Peter B.


Book ID
127075877
Publisher
American Chemical Society
Year
1950
Tongue
English
Weight
510 KB
Volume
72
Category
Article
ISSN
0002-7863

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Fluorescent 6-hydroxy- and 6,7-dihydroxy
✍ Georg Uray; Naresh S. Badgujar; Sona Kováčková; Wolfgang Stadlbauer 📂 Article 📅 2008 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 550 KB

## Abstract magnified image Stepwise demethylation of fluorescent 6,7‐dimethoxy‐3‐trifluoromethylcarbostyrils **5** leads to 6‐hydroxy derivatives **6** and 6,7‐dihydroxyderivative **7**. Phenolate formation shifts excitation and emission maxima from 370 and 430 nm to 430 and 480 nm for the anion