摘要:
The present invention provides an 18F-labeled azide compound usable in the Huisgen reaction which enables 18F-labeling although only a small quantity of alkyne compound is available as a counterpart substrate, more specifically the 18F-labeled azide compound enabling the PET to be applied to peptides or oligonucleotides and enabling the 18F-labeling of any sites of oligonucleotide other than the 5′ end or 3′ end thereof, a reagent for 18F-labeling, and a method for 18F-labeling of an alkyne compound using the same.
摘要:
[OBJECT]The present invention provides an 18F-labeled azide compound usable in the Huisgen reaction which enables 18F-labeling although only a small quantity of alkyne compound is available as a counterpart substrate, more specifically the 18F-labeled azide compound enabling the PET to be applied to peptides or oligonucleotides and enabling the 18F-labeling of any sites of oligonucleotide other than the 5′ end or 3′ end thereof, a reagent for 18F-labeling, and a method for 18F-labeling of an alkyne compound using the same.[SOLVING MEANS]An 18F-labeled azide compound according to the present invention is expressed by the following structural formula 1.[SELECTED DRAWING] None
摘要:
Oligonucleotide analogues which have anti-sense or anti-gene activity, as well as in vivo stability, or pharmaceutically acceptable salts thereof. The oligonucleotide analogues have one or more structural units represented by the following formula (1a): provided that when the oligonucleotide has two or more structural units of formula (1a), each B is the same or different, wherein B represents a purin-9-yl group or a 2-oxo-1,2-dihydropyrimidin-1-yl group.
摘要:
An object of the present invention is to provide an oligonucleotide useful as a therapeutic agent for dyslipidemia that has excellent binding affinity to the PCSK9 gene as well as stability and safety. The oligonucleotide of the present invention contains a sugar-modified nucleoside, the sugar-modified nucleoside has a bridging structure between 4′-position and 2′-position, and the oligonucleotide can bind to the human PCSK9 gene. Also, the present invention provides a therapeutic agent for dyslipidemia containing the oligonucleotide as an active ingredient, and the therapeutic agent preferably contains a bioabsorbable material as a carrier. The bioabsorbable material is preferably atelocollagen or peptide gel.
摘要:
An oligonucleotide analogue useful for the antisense method, etc., having excellent enzyme resistance, having potent selective binding affinity for single-stranded RNA, and further having an excellent triplex-forming capacity with double-stranded DNA, and a nucleoside analogue useful for its production are provided. Nucleoside analogues, which are compounds of the general formula (I) and salts thereof, and oligonucleotide analogues containing one or more of the nucleoside analogues: where Base is an aromatic heterocyclic group or the like optionally having a substituent; R1, R2 and R3 are each a hydrogen atom, a protective group for an amino group, a protective group for a hydroxyl group, a phosphate group, or —P(R4)R5 [where R4 and R5 are each a hydroxyl group, a protected hydroxyl group, a mercapto group, a protected mercapto group, etc.]; m=0 to 2; and n=1 to 3].
摘要翻译:可用于反义方法等的寡核苷酸类似物具有优异的耐酶性,对单链RNA具有强选择性结合亲和力,并且还具有双链DNA具有优异的三链体形成能力,以及可用于其的核苷类似物 提供生产。 核苷类似物,其是通式(I)的化合物及其盐,以及含有一个或多个核苷类似物的寡核苷酸类似物:其中,碱是任选具有取代基的芳族杂环基等; R 1,R 2和R 3各自为氢原子,氨基保护基,羟基保护基 ,磷酸基或-P(R 4)R 5 [其中R 4和R 5'是 每个羟基,被保护的羟基,巯基,保护的巯基等]; m = 0〜2; n = 1〜3]。
摘要:
Bicyclonucleoside analogues which exhibit anti-AIDS activity and intermediates to produce oligonucleotide analogues which have anti-sense or anti-gene activity as well as in vivo stability. Compounds of the following formula (1) or their pharmaceutically acceptable salts. wherein R1 represents a hydrogen atom or a protecting group for a hydroxy group, R2 represents an azido group or an optionally protected amino group or the like, B represents a purin-9-yl or a 2-oxo-1,2-dihydropyrimidin-1-yl group, which are optionally substituted with substituents selected from the group consisting of a halogen atom, an alkyl group having 1–6 carbon atoms, a hydroxy group, a mercapto group and an amino group.
摘要:
An antisense oligonucleotide derivative against HCV is provided which contains one or more nucleotide analogue units having a modified sugar portion and represented by the following general formula where B denotes a pyrimidine or purine nucleic acid base or an analogue thereof. The derivative of the present invention is an antisense against hepatitis C virus (HCV) gene, binds to HCV-RNA with high affinity within cells, can control and inhibit the expression of its gene with high efficiency, and shows high resistance to nucleases. The BNA antisense oligonucleotide of the present invention is also effective in an antisense method targeting HCV, no matter what secondary structures, such as loops or stems, in a target RNA nucleic acid are.
摘要:
An oligo- or polynucleotide analogue having one or more structures of the general formula where B is a pyrimidine or purine nucleic acid base, or an analogue thereof, is disclosed. The use of this analogue provides an oligonucleotide analogue antisense molecule, which is minimally hydrolyzable with an enzyme in vivo, has a high sense strand binding ability, and is easily synthesized.
摘要:
An object of the present invention is to provide an oligonucleotide useful as a therapeutic agent for dyslipidemia that has excellent binding affinity to the PCSK9 gene as well as stability and safety. The oligonucleotide of the present invention contains a sugar-modified nucleoside, the sugar-modified nucleoside has a bridging structure between 4′-position and 2′-position, and the oligonucleotide can bind to the human PCSK9 gene. Also, the present invention provides a therapeutic agent for dyslipidemia containing the oligonucleotide as an active ingredient, and the therapeutic agent preferably contains a bioabsorbable material as a carrier. The bioabsorbable material is preferably atelocollagen or peptide gel.
摘要:
Compounds of the following general formula (1) and salts thereof: where A represents an alkylene group having 1 to 2 carbon atoms, etc.; B represents an aromatic heterocyclic group which may have a substituent, etc.; R1 and R2 each represent a hydrogen atom, a protective group for a hydroxyl group for synthesis of nucleic acid, a phosphate group, or —P(R4)R5 [where R4 and R5 are the same or different, and each represent a hydroxyl group, a hydroxyl group protected with a protective group for synthesis of nucleic acid, a mercapto group, a mercapto group protected with a protective group for synthesis of nucleic acid, etc.]; and R3 represents a hydrogen atom, a halogen atom, a hydroxyl group, a hydroxyl group protected with a protective group for synthesis of nucleic acid, etc. These compounds are useful for producing oligonucleotide analogues useful for the antisense method, antigene method, etc., and for producing their intermediates.
摘要翻译:下列通式(1)的化合物及其盐:其中A表示碳原子数1〜2的亚烷基等; B表示可具有取代基的芳香族杂环基等。 R 1和R 2各自表示氢原子,用于合成核酸的羟基的保护基,磷酸基或-P(R) R 5)R 5其中R 4和R 5相同或不同,并且各自表示羟基, 用保护基团保护的羟基,用于合成核酸,巯基,用保护基保护的用于合成核酸的巯基等]。 R 3表示氢原子,卤素原子,羟基,被保护基团保护的羟基,用于合成核酸等。这些化合物可用于制备可用于核酸的寡核苷酸类似物 反义方法,反苯乙烯法等,并制备其中间体。