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Synthesis of 8,8-R,R-8,9-Dihydro[1,2,4]triazolo[1,5-a]quinazolin-6(7H)-ones

✍ Scribed by Kh. S. Shikhaliev; D. V. Kryl'skii; A. Yu. Potapov; M. Yu. Krysin


Publisher
John Wiley and Sons
Year
2006
Weight
16 KB
Volume
37
Category
Article
ISSN
0931-7597

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✍ Yandong Zhang; Chao Yao; Richard A. Houghten; Yongping Yu 📂 Article 📅 2007 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 117 KB 👁 1 views

## Abstract An approach for the solid‐phase synthesis of 4,8‐disubstituted‐8,9‐dihydropyrazino[2,3‐__g__]quinazolin‐7(6__H__)‐ones from 4‐chloro‐7‐fluoro‐6‐nitroquinazoline scaffold is described. A chemoselective reaction of resin‐bound arylamines (**3**) with 4‐chloro‐7‐fluoro‐6‐nitroquinazoline (