Pd-Catalyzed sequential β-C(sp<sup>3</sup>)–H arylation and intramolecular amination of δ-C(sp<sup>2</sup>)–H bonds for synthesis of quinolinones via an N,O-bidentate directing group
The pharmacological importance of 2-quinolinone derivatives is well known. Herein, we developed an effective protocol for the synthesis of 2-quinlinolinone derivatives by palladium-catalyzed sequential [small beta]-C(sp3)-H arylation and selective intramolecular C(sp2)-H/N-H...
(wherein R represents a residue comprising a reactive group or a group capable of being transformed into the reactive group; n represents an integer of 3 or more; and X represents a residue capable of having the following structure by n in number:
R
1
s each represent a hydrogen atom or a group capable of being transformed into a hydrogen atom, and 6 or more of R
1
s may be the same or different)
The compound represented by the above formula (1), which is capable of modifying a physiologically active polypeptide or a derivative thereof, or a low molecular compound while maintaining the physiological activity, or which is useful for improving the stability or water-solubility of the low molecular compound, are provided.
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:——
公开号:US20040043977A1
公开(公告)日:2004-03-04
Disclosed are compounds which inhibit &bgr;-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 &bgr;-amyloid peptide release and/or its synthesis as well as methods for treating Alzheimer's disease both prophylactically and therapeutically with such pharmaceutical compositions.
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:——
公开号:US20040058900A1
公开(公告)日:2004-03-25
Disclosed are compounds which inhibit &bgr;-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 &bgr;-amyloid peptide release and/or its synthesis as well as methods for treating Alzheimer's disease both prophylactically and therapeutically with such pharmaceutical compositions.
(wherein R represents a residue comprising a reactive group or a group capable of being transformed into the reactive group; n represents an integer of 3 or more; and X represents a residue capable of having the following structure by n in number:
R1s each represent a hydrogen atom or a group capable of being transformed into a hydrogen atom, and 6 or more of R1s may be the same or different)
The compound represented by the above formula (1), which is capable of modifying a physiologically active polypeptide or a derivative thereof, or a low molecular compound while maintaining the physiological activity, or which is useful for improving the stability or water-solubility of the low molecular compound, are provided.
(其中 R 代表包含活性基团或可转化为活性基团的基团的残基;n 代表 3 或 3 以上的整数;X 代表可具有以下结构的残基,其数目以 n 为单位:
R1s 各代表一个氢原子或一个能转变成氢原子的基团,6 个或更多的 R1s 可以相同或不同)
上述式(1)所代表的化合物能够在保持生理活性的同时改变生理活性多肽或其衍生物或低分子化合物,或有助于提高低分子化合物的稳定性或水溶性。