Synthesis of 1,4-diazepin-5-ones under microwave irradiation and their reduction products
摘要:
A new efficient access to 1,4-diazepane derivatives is described via a microwave assisted synthesis of 7-substituted-1,4-diazepin-5-ones, which proceeds rapidly in good yields. Catalytic reduction gave 1,4-diazepan-5-ones and 1,4-diazepanes whereas a ring opening was observed by hydride reduction when a phenyl group occupies the N-benzylic position. (c) 2007 Elsevier Ltd. All rights reserved.
Cycloalkyl, lactam, lactone and related compounds, pharmaceutical compositions comprising same, and methods for inhibiting beta-amyloid peptide release and/or its synthesis by use of such compounds
申请人:Thorsett D. Eugene
公开号:US20070203108A1
公开(公告)日:2007-08-30
Disclosed are compounds which inhibit β-amyloid peptide release and/or its synthesis, and, accordingly, have utility in treating Alzheimer's disease. Also disclosed are pharmaceutical compositions comprising a compound which inhibits β-amyloid peptide release and/or its synthesis as well as methods for treating Alzheimer's disease both prophylactically and therapeutically with such pharmaceutical compositions.
A new efficient access to 1,4-diazepane derivatives is described via a microwave assisted synthesis of 7-substituted-1,4-diazepin-5-ones, which proceeds rapidly in good yields. Catalytic reduction gave 1,4-diazepan-5-ones and 1,4-diazepanes whereas a ring opening was observed by hydride reduction when a phenyl group occupies the N-benzylic position. (c) 2007 Elsevier Ltd. All rights reserved.
Rapid, quantitative, solvent-free synthesis of medium-ring diaza heterocycles from diketene–acetone adduct and diamines
作者:Clifford S. Morrison、Jana B. Lampe、Tesia C. Kolodziejczyk、Ronaldo J. Cavazos、Robby A. Petros
DOI:10.1016/j.tetlet.2014.10.007
日期:2014.11
The synthesis of medium-ringheterocycles remains a challenge largely due to unfavorable energetic factors. We are reporting syntheses of 7–9-member diazaheterocycles that go to completion in 5 min, require no solvents, and are quantitative with the only byproducts being acetone and water. The reaction products could be isolated in pure form by simply placing the mixture under vacuum. The reaction