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https://doi.org/10.1016/j.tet.2007.10.046
| Title: | Practical synthesis of regioisomeric 5(7)-amino-6,7(4,5)-dihydro[1,2,4]triazolo[1,5-a][1,3,5]triazines | Authors: | Dolzhenko, A.V. Dolzhenko, A.V. Chui, W.-K. |
Keywords: | 1,2,4-Triazoles 5-Azapurines Fused 1,3,5-triazines Hydrazides Tautomerism Triazolotriazines |
Issue Date: | 24-Dec-2007 | Citation: | Dolzhenko, A.V., Dolzhenko, A.V., Chui, W.-K. (2007-12-24). Practical synthesis of regioisomeric 5(7)-amino-6,7(4,5)-dihydro[1,2,4]triazolo[1,5-a][1,3,5]triazines. Tetrahedron 63 (52) : 12888-12895. ScholarBank@NUS Repository. https://doi.org/10.1016/j.tet.2007.10.046 | Abstract: | A convenient and efficient synthesis of new 5-azapurine derivatives was developed. The regioisomeric 5-amino-6,7-dihydro- and 7-amino-4,5-dihydro[1,2,4]triazolo[1,5-a][1,3,5]triazines were prepared in 3-4 steps from benzhydrazide via complementary and regiospecific routes as a part of our lead finding program. The molecular structures and tautomeric preferences of the compounds obtained were investigated using NMR spectral data and X-ray crystallography. © 2007 Elsevier Ltd. All rights reserved. | Source Title: | Tetrahedron | URI: | http://scholarbank.nus.edu.sg/handle/10635/106235 | ISSN: | 00404020 | DOI: | 10.1016/j.tet.2007.10.046 |
| Appears in Collections: | Staff Publications |
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