Efficient synthesis of N-substituted lactams from (N-arylsulfonyloxy) amines and cyclic ketones
作者:Robert V. Hoffman、James M. Salvador
DOI:10.1016/s0040-4039(01)80691-2
日期:1989.1
A new method is reported for the direct preparation of N-substituted lactams from cycloalkanones. N-(p-nitrobenzenesulfonoxyl) methylamine (CH3NH-OSO2C6H4NO2) was reacted with a series of cycloalkanones to give good yields of N-methyl lactams. An addition-rearrangement pathway accounts for the ring-expanded lactam products. A series of N-alkyl-N-arylsulfonoxyl amines were generated in situ and reacted
报道了一种从环烷酮直接制备N-取代内酰胺的新方法。使N-(对硝基苯磺酰氧基)甲胺(CH 3 NH-OSO 2 C 6 H 4 NO 2)与一系列环烷酮反应,得到良好收率的N-甲基内酰胺。加成-重排途径解释了扩环的内酰胺产物。一系列原位生成N-烷基-N-芳基磺氧基胺,并与环丁酮反应以高收率得到N-烷基吡咯烷酮。
A simple, one-flask transformation of ketones to N-methyl lactams
作者:Robert V. Hoffman、James M. Salvador
DOI:10.1016/s0040-4039(00)74345-0
日期:1991.11
A one-flask conversion of cyclic ketones to N-methyl lactams is described. Reaction of the ketone with triethylorthoformate generates an acetal which is reacted in situ with N-(((p-nitrobenzene)sulfonyl)oxy methylamine 2a(CH3NH-OSO2C6H4NO2). Dealkylation of the resulting O-ethyl imidate with sodiumiodide gives the lactam. A variety of lactams, including macrocyclic lactams, are produced simply and
描述了环状烧瓶到N-甲基内酰胺的单烧瓶转化。酮与原甲酸三乙酯反应生成缩醛,该缩醛与N-(((对硝基苯)磺酰基)氧基甲胺2a(CH 3 NH-OSO 2 C 6 H 4 NO 2)原位反应。亚胺酸乙酯与碘化钠制得内酰胺,可以简单,高收率地生产各种内酰胺,包括大环内酰胺。
CYCLIC MALONAMIDES AS INHIBITORS OF ABETA PROTEIN PRODUCTION
申请人:Olson Richard E.
公开号:US20100009965A1
公开(公告)日:2010-01-14
This invention relates to novel cyclic malonamides having the formula (I):
to their pharmaceutical compositions and to their methods of use. These novel compounds inhibit the processing of amyloid precursor protein and, more specifically, inhibit the production of Aβ-peptide, thereby acting to prevent the formation of neurological deposits of amyloid protein. More particularly, the present invention relates to the treatment of neurological disorders related to β-amyloid production such as Alzheimer's disease and Down's Syndrome.
CYCLIC MALONAMIDES AS INHIBITORS OF Abeta PROTEIN PRODUCTION
申请人:Olson Richard E.
公开号:US20090264419A1
公开(公告)日:2009-10-22
This invention relates to novel cyclic malonamides having the formula (I):
to their pharmaceutical compositions and to their methods of use. These novel compounds inhibit the processing of amyloid precursor protein and, more specifically, inhibit the production of Aβ-peptide, thereby acting to prevent the formation of neurological deposits of amyloid protein. More particularly, the present invention relates to the treatment of neurological disorders related to β-amyloid production such as Alzheimer's disease and Down's Syndrome.
Hydroxyalkanoylaminolactams and related structures as inhibitors of Alphabeta protein production
申请人:Olson E. Richard
公开号:US20070027132A1
公开(公告)日:2007-02-01
This invention relates to novel lactams having the formula (I):
to their pharmaceutical compositions and to their methods of use. These novel compounds inhibit the processing of amyloid precursor protein and, more specifically, inhibit the production of Aβ-peptide, thereby acting to prevent the formation of neurological deposits of amyloid protein. More particularly, the present invention relates to the treatment of neurological disorders related to β-amyloid production such as Alzheimer's disease and Down's Syndrome.