摘要:
A method for preparing an oligonucleotide comprising the steps of a) providing a 3-protected compound having the formula: wherein B is a heterocyclic base R2 is H, a protected 2-hydroxyl group, F, a protected amino group, an O-alkyl group, an O-substituted alkyl, a substituted alkylamino or a C4′-O2′methylen linkage R3 is OR′3, NHR″3, NR″3R′″3, a 3′-protected nucleotide or a 3′-protected oligonucleotide, R′3 is a hydroxyl protecting group, R″3, R′″3 are independently an amine protecting group, b) reacting said compound with a nucleotide derivative having a 5-proctection group in the presence of a solid supported activator to give an elongated oligonucleotide with a P(III)-internucleotide bond c) optionally processing the elongated oligonucleotide with a P(III)-internucleotide bond by either or both of steps c1) and c2) in any sequence c1) capping preferably by reacting with a solid supported capping agent c2) oxidizing preferably by reacting the oligonucleotide with a solid supported oxidizing reagent d) removing the 5′-protection group.
摘要:
A solution phase synthesis method for preparing an oligonucleotide, wherein at least some of the reagents are solid supported. The method suitable for large- scale synthesis comprises coupling a protected compound with a nucleotide derivative having a protection group in the presence of a solid supported activator to give an elongated oligonucleotide with a P(III)-internucleotide bond; optionally processing the elongated oligonucleotide by capping by reaction with a solid supported capping agent and/or by oxidizing or sulfurizing by reaction of the oligonucleotide with a solid supported oxidizing or sulfurization reagent; and removing the protection group. The coupling may include reacting a 3′-protected compound of formula: with a nucleotide derivative having a 5′-protection group, or reacting a 5′-protected compound of formula with a nucleotide derivative having a 3′-protection group.
摘要:
A method for purifying a protected oligonucleotide comprising the steps of: a) providing a solution of the protected oligonucleotide in at least one solvent A having a boiling point below the boiling point of a solvent B, heating the solution at a temperature of at least 30° C. and below the boiling point of the at least solvent A, adding solvent B until precipitation of a material is visible in the solution, said solvent B being an alcohol having 1 to 6 C-atoms or a diol having 2 to 6 C-atoms, allowing the solution to cool down under stirring until formation of a supernatant and a residue, removing the supernatant or b) providing solvent B, said solvent B being an alcohol having 1 to 6 C-atoms or a diol having 2 to 6 C-atoms, heating solvent B at a temperature above 30° C. and below the boiling point of solvent B, adding a solution of a protected oligonucleotide in at least one solvent A until precipitation of a material is visible in the solution, allowing the solution to cool down under stirring until formation of a supernatant and a residue, removing the supernatant.
摘要:
A method for preparing an oligonucleotide comprising the steps of a) providing a hydroxyl containing compound having the formula (A), b) reacting said compound with a phosphitylating agent in the presence of an activator (activator I) having the formula (I) to prepare a phosphitylated compound; and c) reacting said phosphitylated compound without isolation with a second compound having the formula (A) wherein R5, R3, R2, B are independently selected, but have the same definition as above in the presence of an activator II different from activator I.
摘要:
A method for preparing a phosphitylated compound comprising the step of:—reacting a hydroxyl containing compound with a phosphitylating agent in the presence of an activator having the formula (I) wherein R=alkyl, cycloalkyl, aryl, aralkyl, heteroalkyl, heteroaryl R1, R2=either H or form a 5 to 6-membered ring together. X1, X2=independently either N or CH Y═H or Si(R4)3, with R4=alkyl, cycloalkyl, aryl, aralkyl, heteroalkyl, heteroaryl B=deprotonated acid. The hydroxyl containing compound is preferably a sugar moiety or a nucleoside or an oligomer derived therefrom.
摘要:
A solution phase synthesis method for preparing an oligonucleotide, wherein at least some of the reagents are solid supported. The method suitable for large-scale synthesis comprises coupling a protected compound with a nucleotide derivative having a protection group in the presence of a solid supported activator to give an elongated oligonucleotide with a P(III)-internucleotide bond; optionally processing the elongated oligonucleotide by capping by reaction with a solid supported capping agent and/or by oxidizing or sulfurizing by reaction of the oligonucleotide with a solid supported oxidizing or sulfurization reagent; and removing the protection group. The coupling may include reacting a 3′-protected compound of formula: with a nucleotide derivative having a 5′-protection group, or reacting a 5′-protected compound of formula with a nucleotide derivative having a 3′-protection group.
摘要:
A method for purifying a protected oligonucleotide comprising the steps of: a) providing a solution of the protected oligonucleotide in at least one solvent A having a boiling point below the boiling point of a solvent B, heating the solution at a temperature of at least 30° C. and below the boiling point of the at least solvent A, adding solvent B until precipitation of a material is visible in the solution, said solvent B being an alcohol having 1 to 6 C-atoms or a diol having 2 to 6 C-atoms, allowing the solution to cool down under stirring until formation of a supernatant and a residue, removing the supernatant or b) providing solvent B, said solvent B being an alcohol having 1 to 6 C-atoms or a diol having 2 to 6 C-atoms, heating solvent B at a temperature above 30° C. and below the boiling point of solvent B, adding a solution of a protected oligonucleotide in at least one solvent A until precipitation of a material is visible in the solution, allowing the solution to cool down under stirring until formation of a supernatant and a residue, removing the supernatant.
摘要:
A process for the synthesis of compounds of general formulas comprising the step of reacting in the presence of wherein: R=substituted or unsubstituted alkyl, aryl, heterocycles containing one or more O, N, S, P or B; R1 and R2 independently represent H, substituted or unsubstituted alkyl, aryl, heterocycles containing one or more O, N, S, P or B; R′═H, OH, OR or OSiX3, wherein X independently represent alkyl or aryl.
摘要翻译:一种用于合成通式化合物的方法,包括在其中:R =取代或未取代的烷基,芳基,含有一个或多个O,N,S,P或B的杂环的反应的步骤; R 1和R 2独立地表示H,取代或未取代的烷基,芳基,含有一个或多个O,N,S,P或B的杂环; R'-H,OH,OR或OSiX 3,其中X独立地表示烷基或芳基。
摘要:
A method for purifying a protected oligonucleotide comprising the steps of: a) providing a solution of the protected oligonucleotide in at least one solvent A having a boiling point below the boiling point of a solvent B, heating the solution at a temperature of at least 30° C. and below the boiling point of the at least solvent A, adding solvent B until precipitation of a material is visible in the solution, said solvent B being an alcohol having 1 to 6 C-atoms or a diol having 2 to 6 C-atoms, allowing the solution to cool down under stirring until formation of a supernatant and a residue, removing the supernatant or b) providing solvent B, said solvent B being an alcohol having 1 to 6 C-atoms or a diol having 2 to 6 C-atoms, heating solvent B at a temperature above 30° C. and below the boiling point of solvent B, adding a solution of a protected oligonucleotide in at least one solvent A until precipitation of a material is visible in the solution, allowing the solution to cool down under stirring until formation of a supernatant and a residue, removing the supernatant.
摘要:
A method for preparing an oligonucleotide comprising the steps ofa) providing a hydroxyl containing compound having the formula (A), b) reacting said compound with a phosphitylating agent in the presence of an activator (activator I) having the formula (I) to prepare a phosphitylated compound; and c) reacting said phosphitylated compound without isolation with a second compound having the formula (A) wherein R5, R3, R2, B are independently selected, but have the same definition as above in the presence of an activator II different from activator I.