Method for obtaining novel derivatives of naphtalene for the in vivo diagnosis of Alzheimer's disease
申请人:Centro De Neurociencias De Cuba
公开号:EP2860169A2
公开(公告)日:2015-04-15
This invention relates to a chemistry branch, particularly to the field of compounds' organic synthesis that belongs to the aromatic bicyclic or naphthalene category, used in the detection of amyloid sheets. These new naphthalene derivatives have a general formula:
Where R represents mutually independent groups.
In I: R1: -alkylenyl-C(O)NH-alkylenyl-R3, -alkylenyl-C(O)O-R4; R3: -COOH, -OH, - SH, -NH2, -alkyl-NH, -alkyl-N-dithiocarbamate alkaline earth metal salts. R4: succinimidyl group. R2: -H, -alkyl. The term "alkyl" is characterized by a linear or branched aliphatic chain, hydrogen and saturated carbon atoms, comprising a methyl, ethyl, n-propyl, iso-propyl, n-butyl or iso-butyl groups. The term "alkylenyl" refers to a divalent analog of a linear or branched alkyl group, preferably ethylenyl (CH2CH2) or butylenyl (CH2CH2CH2CH2) radicals.
In II: R1: -alkyl, and R2 is -alkylenyl-O-arylsulfonate, -alkylenyl-halide, -CH(O), alkylenyl-NH2, -alkylenyl-NH-alkyl, -alkylenyl-alkyl-N-dithiocarbamate salts such as cesium, potassium or sodium. The term "alkyl" is characterized by a linear or branched aliphatic chain, hydrogen and saturated carbon atoms, preferably methyl, ethyl, n-propyl, iso-propyl, n-butyl or iso-butyl. The term "alkylenyl" refers to a divalent analog of a linear or branched alkyl group, preferably propylenyl (-CH2CH2 CH2) radical. The term halide refers to fluorine, bromine or iodine.
or,
In II: R1: -alkylenyl-halide, -alkylenyl-O-arylsulfonate and R2: -halide, -alkylenyl-O-arylsulfonate, -alkylenyl-O-alkylsulfonate, -alkylenyl-halide, -CH(O), -HC=C(CN)2, - HC=CHNO2, -alkylenyl-NH2, -alkylenyl-NH-alkyl, -alkylenyl-alkyl-N-dithiocarbamate salts such as cesium, potassium or sodium. The term "alkylenyl" refers to a divalent analog of a linear or branched alkyl group, preferably propylenyl (-CH2CH2 CH2) radical. The term halide refers to fluorine, bromine or iodine.
These compounds are neutral, lipophilic and have low molecular weight and therefore they cross the blood brain barrier and attach to the amyloid sheets.
The present invention provides procedures for obtaining naphthalene derivatives with good yields, which can be practical, economical and adapted to a larger-scale manufacturing.
We are unaware whether the compounds presented in this invention have been previously reported.
本发明涉及化学分支,特别是化合物有机合成领域,属于芳香族双环或萘类,用于检测淀粉样蛋白片。这些新型萘衍生物的通式为
其中 R 代表相互独立的基团。
在 I.R1:-烷烯基-C(O)NH-烷烯基-R3,-烷烯基-C(O)O-R4; R3:-COOH、-OH、-SH、-NH2、-烷基-NH、-烷基-N-二硫代氨基甲酸碱土金属盐。R4:琥珀酰亚胺基。R2:-H、-烷基。术语 "烷基 "的特征是由甲基、乙基、正丙基、异丙基、正丁基或异丁基基团组成的直链或支链脂肪族链、氢原子和饱和碳原子。术语 "烷烯基 "是指直链或支链烷基的二价类似物,最好是乙烯基(CH2CH2)或丁烯基(CH2CH2CH2)。
在 II:R1:-烷基,R2 是-烯基-O-芳基磺酸盐、-烯基-卤化物、-CH(O)、烯基-NH2、-烯基-NH-烷基、-烯基-烷基-N-二硫代氨基甲酸盐,如铯、钾或钠。术语 "烷基 "的特征是直链或支链脂肪族链、氢原子和饱和碳原子,最好是甲基、乙基、正丙基、异丙基、正丁基或异丁基。术语 "烷烯基 "是指直链或支链烷基的二价类似物,最好是丙烯基(-CH2CH2 CH2)。卤化物指氟、溴或碘。
或、
在 II:R1:-烷基卤化物、-烷基-O-芳基磺酸盐和 R2:-卤化物、-烷基-O-芳基磺酸盐、-烷基-O-烷基磺酸盐、-烷基卤化物、-CH(O)、-HC=C(CN)2、-HC=CHNO2、-烷基-NH2、-烷基-NH-烷基、-烷基-烷基-N-二硫代氨基甲酸盐,如铯、钾或钠。术语 "烷烯基 "是指直链或支链烷基的二价类似物,最好是丙烯基(-CH2CH2 CH2)。卤化物指氟、溴或碘。
这些化合物呈中性、亲油且分子量低,因此可穿过血脑屏障并附着在淀粉样蛋白片上。
本发明提供了获得萘衍生物的程序,产量高,实用、经济,可用于大规模生产。
我们不知道本发明中提出的化合物以前是否已有报道。