Synthesis of N-methoxy and N-H aziridines from alkenes
摘要:
Electron-rich alkenes are converted into N-methoxyaziridines by treatment with HN(OCH3)2 and trimethylsilyl triflate. Reduction with Li/ammonia affords the N-H aziridines.
Diozonides from coozonolyses of suitable O-methyl oximes and ketones
作者:Karl Griesbaum、Xuejun Liu、Yuxiang Dong
DOI:10.1016/s0040-4020(97)00260-3
日期:1997.4
ketones 5a - c in the presence of 1,4-cyclohexanedione (6) and ozonolyses of the O-methylated dioxime 8 of 1,4-cyclohexanedione in the presence of cycloketones 7a - c afforded the corresponding diozonides 11. Ozonolysis of the O-methyl oxime of acetone gave diozonide 18 in the presence of 6 and diozonide 21 in the presence of butanedione. Ozonolysis of the O-methyl oxime of cyclohexanone in the presence
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.