Carcinogenic Hydrocarbons. III. 20-Isopropylcholanthrene. A Comparison of the Fluorescence and Crystal Forms of Methylcholanthrene, Ethylcholanthrene and Isopropylcholanthrene
A polyamino-oligomer comprising repeating units having an indan skeleton, prepared by the reaction of a diisopropenylbenzene or a bis(α-hydroxyisopropyl)benzene with an aniline in the presence of an acid catalyst. The oligomer is used as a curing agent for resins to be used for making laminates and, in addition, it is reacted with maleic anhydride to give a polymaleimide compound. This compound has a low melting or softening point and can provide a thermosetting resin composition suitable for manufacturing copper-clad laminates by compounding with a reactant which forms a three-dimensional cross-linkage, such as triallyl isocyanurate or an aromatic diamine. The obtained laminate is lowly dielectric, heat-resistant and lowly water-absorbent, and is useful for making multilayer printed wiring boards.
2-AMINOPYRIMIDIN-4-ONE AND 2-AMINOPYRIDINE DERIVATIVES BOTH HAVING BACE1-INHIBITING ACTIVITY
申请人:Yonezawa Shuji
公开号:US20110237576A1
公开(公告)日:2011-09-29
The present invention provides a compound which has an effect of inhibiting amyloid-β production and is useful as a therapeutic agent for diseases induced by production, secretion and/or deposition of amyloid-β proteins. The present invention relates to a compound represented by formula (I) or a pharmaceutically acceptable salt or solvate thereof:
wherein A is optionally substituted carbocyclic diyl or optionally substituted heterocyclic diyl; B is an optionally substituted carbocyclic group or an optionally substituted heterocyclic group; R
1
is a group such as optionally substituted lower alkyl; R
2
is a group such as hydrogen; and R
3a
and R
3b
are each independently a group such as hydrogen, provided that the following compound is excluded.
US5399715A
申请人:——
公开号:US5399715A
公开(公告)日:1995-03-21
US8658657B2
申请人:——
公开号:US8658657B2
公开(公告)日:2014-02-25
[EN] CURABLE RESIN COMPOSITION<br/>[FR] COMPOSITION DE RÉSINE DURCISSABLE<br/>[JA] 硬化性樹脂組成物