专利号:US-8138330-B2 优先权日:2006-09-11 标 题 :Process for the synthesis of oligonucleotides 发明人:LEUCK MICHAEL; WOLTER ANDREAS; STUMPE ALFRED 权利人:LEUCK MICHAEL; WOLTER ANDREAS; STUMPE ALFRED; SIGMA ALDRICH CO LLC 摘要:The present invention discloses novel methods for the synthesis of oligonucleotides with nucleoside phosphoramidites on solid supports. The methods comprise the stepwise chain assembly of oligonucleotides on supports with 5′-acyl phosphoramidites. The synthesis cycles consist of a front end deprotection step which is conducted with a solution of a primary amine or a phenolate, a phosphoramidite coupling step with a 5′-acyl nucleoside phosphoramidite in the presence of an activator, a phosphite oxidation step and an optional capping step. The novel methods improve the quality of synthetic oligonucleotides due to the irreversibility of the front end deprotection step, which prevents the formation of deletion sequences, and due to the avoidance of acidic reagents in the synthesis cycles, which prevent the formation of depurination side products. The invention further discloses novel nucleoside phosphoramidite compositions wherein the phosphoramidites carry acyl front end protective groups which are cleavable with primary amines or phenolates. The invention is applicable to the synthesis of oligodeoxyribonucleotides, oligoribonucleotides and oligonucleotides with modifications in their sugar or phosphate groups.
专利号:WO-9837078-A1 优先权日:1997-02-20 标题 :Solid phase and combinatorial synthesis of substituted thiophenes and of arrays of substituted thiophenes 发明人:DOERWALD FLORENCIO ZARAGOZA 权利人:NOVO NORDISK AS 摘要:A solid phase method for the synthesis of a plurality of differently substituted thiophenes with a wide variety of side-chain substituents as compounds of potential therapeutic interest. The thiophenes are prepared by reaction of a substrate-bound primary or secondary amine with a thiophosgene equivalent and reaction of the resulting intermediate with an acceptor-substituted acetonitrile in the presence of a base. Alkylation with an appropriate alkyl halide, followed by Thorpe-Ziegler-cyclization yields differently substituted, support-bound 3-aminothiophenes. These may be screened on the substrate or cleaved from the substrate and then screened in solution. Alternatively, the resin-bound 3-amino thiophenes or the synthetic intermediates can be subjected to further synthetic transformations (N-acylation, reduction) on the support, which permits the preparation of further therapeutically interesting compounds. The efficient synthesis of a wide variety of thiophenes using automated synthesis technology of the present method makes these compounds attractive candidates for the generation and rapid screening of diverse thiophene-based libraries. The method disclosed here provides an easy and fast access to highly diverse heterocyclic compounds of therapeutic interest, amenable to automatization.
专利号:WO-9740025-A1 优先权日:1996-04-19 标 题 :Solid phase and combinatorial synthesis of substituted 1,2,3-triazoles and of arrays of substituted 1,2,3-triazoles 发明人:DOERWALD FLORENCIO ZARAGOZA 权利人:NOVO NORDISK AS; DOERWALD FLORENCIO ZARAGOZA 摘要:A solid phase method for the synthesis of a plurality of differently substituted 1,2,3-triazoles with a wide variety of side-chain substituents as compounds of potential therapeutic interest. The 1,2,3-triazoles are prepared by acylation of a substrate-bound primary or secondary amine with a 3-oxoalkanoic acid and reaction of the resulting amide with a primary amine under dehydrating conditions to give an enamine. Treatment of this substrate-bound enamine with a sulfonyl azide in the presence of a base gives the corresponding 1,2,3-triazoles. These may be screened on the substrate or cleaved from the substrate and then screened in solution. The efficient synthesis of a wide variety of 1,2,3-triazoles using automated synthesis technology of the present method makes these compounds attractive candidates for the generation and rapid screening of diverse triazole-based libraries. The method disclosed here provides an easy and fast access to highly diverse heterocyclic compounds of therapeutic interest, amenable to automatization.
专利号:US-6136984-A 优先权日:1996-04-22 标 题 :Solid phase and combinatorial synthesis of substituted thiophenes and of arrays of substituted thiophenes 发明人:DOERWALD FLORENCIO ZARAGOZA 权利人:NOVO NORDISK AS 摘要:A solid phase method for the synthesis of a plurality of differently substituted thiophenes with a wide variety of side-chain substituents as compounds of potential therapeutic interest is disclosed. The thiophenes are prepared by acylation of a substrate-bound primary or secondary amine with cyanoacetic acid and reaction of the resulting cyanoacetamide with an isothiocyanate in the presence of a base. Alkylation with an appropriate alkyl halide, followed by Thorpe-Ziegier-cyclization yields differently substituted, support-bound 3-aminothiophenes. These may be screened on the substrate or cleaved from the substrate and then screened in solution. Alternatively, the resin-bound 3-amino thiophenes or the synthetic intermediates can be subjected to further synthetic transformations (N-acylation, reduction) on the support, which permits the preparation of further therapeutically interesting compounds. The efficient synthesis of a wide variety of thiophenes using automated synthesis technology of the present method makes these compounds attractive candidates for the generation and rapid screening of diverse thiophene-based libraries. The method disclosed here provides an easy and fast access to highly diverse heterocyclic compounds of therapeutic interest, amenable to automatization.
专利号:US-5847150-A 优先权日:1996-04-24 标题 :Solid phase and combinatorial synthesis of substituted 2-methylene-2, 3-dihydrothiazoles and of arrays of substituted 2-methylene-2, 3-dihydrothiazoles 发明人:DORWALD FLORENCIO ZARAGOZA 权利人:NOVO NORDISK AS 摘要:A solid phase method for the synthesis of a plurality of differently substituted 2-methylenethiazoles with a wide variety of side-chain substituents as compounds of potential therapeutic interest. The 2-methylenethiazoles are prepared by acylation of a substrate-bound primary or secondary amine with cyanoacetic acid and reaction of the resulting cyanoacetamide with an isothiocyanate in the presence of a base. Alkylation with an appropriate alkyl halide under acidic conditions yields differently substituted, support-bound 2-methylene-2,3-dihydrothiazoles. These may be screened on the substrate or cleaved from the substrate and then screened in solution. The efficient synthesis of a wide variety of 2-methylenethiazoles using automated synthesis technology of the present method makes these compounds attractive candidates for the generation and rapid screening of diverse thiazole-based libraries. The method disclosed here provides an easy and fast access to highly diverse heterocyclic compounds of therapeutic interest, amenable to automatization.
专利号:WO-2025134140-A1 优先权日:2023-12-19 标题:A method for the synthesis of substituted anthranilic amide compounds, intermediates and salts thereof 发明人:MALVIYA NITIN JAIKANT; SINGH VIPENDER; SHAH JIGARKUMAR HARKISHANDAS; KALE MANOJ GANPAT; KAVITAKE SANTOSH GIRIDHAR; BORHADE AJIT SAHEBRAO; KLAUSENER ALEXANDER G M 权利人:PI INDUSTRIES LTD 摘要:The present invention discloses a method for the synthesis of compounds of formula (I) or a salt thereof, wherein, R is selected from hydrogen, halogen, cyano, C1-C12 alkyl, C1-C12 haloalkyl, C1-C12 alkoxy, C1-C12 haloalkoxy, or C3-C8 cycloalkyl; R4 is selected from hydrogen, C1-C12 alkyl, C2-C12 alkenyl, C2-C12 alkynyl, C1-C12 haloalkyl, C2-C12 haloalkenyl, C2-C12 haloalkynyl, C1-C12 alkoxy, C1-C12 haloalkoxy, C3-C8 cycloalkyl, or C3-C8 cycloalkyl-C1-C10 alkyl; and n represents an integer selected from 0-4. The method further comprises the synthesis of an anthranilic diamide compound of formula (A).
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合成参考文献
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