Methods of producing phosphitylated compounds

Provided are methods of producing phosphitylated compounds, including 3'-O-phosphoramidites, comprising the step of reacting a hydroxyl-containing compound with a phosphitylating agent in the presence of a phosphitylation activator selected from the group consisting of: (1) acid-base complexes...

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Bibliographic Details
Main Authors CHRISTIAN WERNER, FRANC NERENZ, ANDREAS KANSCHIK-CONRADSEN
Format Patent
LanguageEnglish
Published 09.09.2003
Edition7
Subjects
APPARATUS THEREFOR
BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
DERIVATIVES THEREOF
ENZYMOLOGY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
NUCLEIC ACIDS
NUCLEOSIDES
NUCLEOTIDES
ORGANIC CHEMISTRY
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPIRITS
SUGARS
VINEGAR
WINE
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Summary:Provided are methods of producing phosphitylated compounds, including 3'-O-phosphoramidites, comprising the step of reacting a hydroxyl-containing compound with a phosphitylating agent in the presence of a phosphitylation activator selected from the group consisting of: (1) acid-base complexes derived from an amine base of Formula II wherein R3, R4, R5, R6, and R7 are independently hydrogen, C1-C10 alkyl, C3-C10 cycloalkyl, C6-C10 aryl, C7-C10 aralkyl, C1-C10 heteroalkyl, or C1-C10 heteroaryl, and at least one of R3, R4, R5, R6, and R7 is not hydrogen; (2) zwitterionic amine complexes; and (3) combinations of two or more thereof, to produce a phosphitylated compound. Further provided are methods for purifying phosphitylated compounds comprising the steps of providing a phosphitylated compound in a solution solvent, contacting said phosphitylated compound with a precipitation solvent, and precipitating said phosphitylated compound.
Bibliography:Application Number: AU20030217706