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Synthesis of 2-amino-7,8-dihydro-6(5H)-quinazolinone, 2,4-diamino-7,8-dihydro-6(5H)-quinazolinone, 5,6,7,8-tetrahydro-2,6-quinazoline-diamine and 5,6,7,8-tetrahydro-2,4,6-quinazolinetriamine derivatives

✍ Scribed by Petra Marinko; AleŠ Obreza; Lucija Peterlin-Mašič; AleŠ Krbavčič; Danijel Kikelj

Publisher
Journal of Heterocyclic Chemistry
Year
2000
Tongue
English
Weight
379 KB
Volume
37
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

N‐(2‐Amino‐5,6,7,8‐tetrahydro‐6‐quinazolinyl)acetamide (9) and N‐(2,4‐diamino‐5,6,7,8‐tetrahydro‐6‐quinazolinyl)acetamide (6) were synthesized from N‐(4‐oxocyclohexyl)acetamide (5) as novel peptidomimetic building blocks. With similar purpose, N‐(6‐oxo‐5,6,7,8‐tetrahydro‐2‐quinazolinyl)acetamide (18) and N‐[2‐(acetylamino)‐6‐oxo‐5,6,7,8‐tetrahydro‐4‐quinazolinyl]acetamide (14) were prepared from cyclohexane‐1,4‐dione monoethylene ketal (11).

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Notizen zur Synthese sulfonierter Deriva
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**Notes on the Synthesis of Sulfonated Derivatives of 5,6,7,8‐Tetrahydro‐1‐naphthylamine and 5,6,7,8‐Tetrahydro‐2‐naphthylamine** Sulfonation of 5,6,7,8‐tetrahydro‐1‐naphthylamine (**1**) with sulfuric acid gave a mixture of 1‐amino‐5,6,7,8‐tetrahydronaphthalene‐2‐sulfonic acid (**2**), 4‐amino‐5,6