CAS: 149297-79-0; 6-Amino-3,9-Dihydro-2H-Purin-2-One

专利信息

专利号:US-6639059-B1
优先权日:1999-03-24
标 题 :Synthesis of [2.2.1]bicyclo nucleosides
发明人：KOCHKINE ALEXEI; FENSHOLDT JEF; PFUNDHELLER HENRIK M
权利人:EXIQON AS
摘要:A synthesis of [2.2.1]bicyclo nucleosides which is shorter and provides higher overall yields proceeds via the key intermediate of the general formula III, wherein R4 and R5 are, for instance, sulfonates and R7 is, for instance, a halogen or an acetate. From compounds of the general formula II, such as 3-O-aryl-4-C-hydroxymethyl-1,2-O-isopropylidene-alpha-D-ribofuranose, intermediates of the general formula III are suitable for coupling with silylated nucleobases. Upon one-pot base-induced ring-closure and desulfonation of the formed [2.2.1]bicyclo nucleoside, a short route to each the LNA (Locked Nucleic Acid) derivatives of adenosine, cytosine, uridine, thymidine and guanidine is demonstrated. The use of the 5'-sulfonated ring-closed intermediate also allows for synthesis of 5'-amino- and thio-LNAs.

专利号:US-6734291-B2
优先权日:1999-03-24
标题:Synthesis of [2.2.1]bicyclo nucleosides
发明人：KOCHKINE ALEXEI; FENSHOLDT JEF; PFUNDHELLER HENRIK M
权利人:EXIQON AS
摘要:A synthesis of [2.2.1]bicyclo nucleosides which is shorter and provides higher overall yields proceeds via the key intermediate of the general formula III, wherein R4 and R5 are, for instance, sulfonates and R7 is, for instance, a halogen or an acetate. From compounds of the general formula II, such as 3-O-aryl-4-C-hydroxymethyl-1,2-O-isopropylidene-alpha-D-ribofuranose, intermediates of the general formula III are suitable for coupling with silylated nucleobases. Upon one-pot base-induced ring-closure and desulfonation of the formed [2.2.1]bicyclo nucleoside, a short route to each the LNA (Locked Nucleic Acid) derivatives of adenosine, cytosine, uridine, thymidine and guanidine is demonstrated. The use of the 5'-sulfonated ring-closed intermediate also allows for synthesis of 5'-amino- and thio-LNAs

专利号:EP-1709057-B1
优先权日:2004-01-21
标 题:Synthesis of spongosine
发明人：OUZMAN JACQUELINE VALERIE ANNE
权利人:CAMBRIDGE BIOTECHNOLOGY LTD
摘要:Reaction of 1-O-acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose with 2-methoxyadenine to form 9-(2′,3′,5′-tri-O-benzoyl-β-D-ribofuranosyl)-2-methoxyadenine, then deprotection of the 9-(2′,3′,5′-tri-O-benzoyl-β-D-ribofuranosyl)-2-methoxyadenine to form spongosine is described. Synthesis of intermediates for use in the synthesis of spongosine is also described.

专利号:US-11858953-B2
优先权日:2018-04-04
标 题:Compositions and methods for synthesis of phosphorylated molecules
发明人：CHAPUT JOHN; LIAO JEN-YU; BALA SAIKAT
权利人:UNIV CALIFORNIA
摘要:The invention provides compositions and methods for synthesis of phosphorylated organic compounds, including nucleoside triphosphates.

专利号:US-2014046060-A1
优先权日:2010-09-01
标 题 :Method of utilizing recycled deuterium oxide in the synthesis of deuterated compounds
发明人：JONES ANDREW D; PAUL BERNHARD J
权利人:JONES ANDREW D; PAUL BERNHARD J; CONCERT PHARMACEUTICALS INC
摘要:The present invention provides a method for utilizing recycled deuterium oxide synthesis of deuterated compounds.

专利号:US-2015344872-A1
优先权日:2014-06-02
标题 :Methods of synthesis of oligonucleotide tagged combinatorial libraries and uses thereof
发明人：HARBURY PEHR; PAIDHUNGAT MADAN; PATTEN PHILLIP; WATTS RICHARD EDWARD
权利人:DICE MOLECULES SV LLC
摘要:Provided herein are methods of synthesis of a compound which includes a functional moiety operatively linked to a tagging oligonucleotide, libraries thereof and methods of using the compound and libraries thereof to identify compounds which bind to a target.