Methods for the preparation of (3R,3aS,6aR) hexahydro- furo [2,3-b] furan-3-ol

Methods for the preparation of (3R,3aS,6aR) hexahydro- furo [2,3-b] furan-3-ol

The present invention relates to methods for the preparation of diastereomerically pure (3R,3aS,6aR) hexahydro-furo[2,3-b]furan-3-ol as well as a novel intermediate, (3aR,4S,6aS) 4-methoxy-tetrahydro-furo[3,4-b]furan-2-one for use in said methods. More in particular the invention relates to a stereo...

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Bibliographische Detailangaben
Hauptverfasser: KESTELEYN BART RUDOLF ROMANIE, VIJN ROBERT JAN, QUAEDFLIEG PETER JAN LEONARD MARIO
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
DERIVATIVES THEREOF
HETEROCYCLIC COMPOUNDS
METALLURGY
NUCLEIC ACIDS
NUCLEOSIDES
NUCLEOTIDES
ORGANIC CHEMISTRY
SUGARS
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Beschreibung
Zusammenfassung:The present invention relates to methods for the preparation of diastereomerically pure (3R,3aS,6aR) hexahydro-furo[2,3-b]furan-3-ol as well as a novel intermediate, (3aR,4S,6aS) 4-methoxy-tetrahydro-furo[3,4-b]furan-2-one for use in said methods. More in particular the invention relates to a stereoselective method for the preparation of diastereomerically pure (3R,3aS,6aR) hexahydro-furo[2,3-b]furan-3-ol, as well as methods for the crystallization of (3aR,4S,6aS) 4-methoxy-tetrahydro-furo[3,4-b]furan-2-one and for the epimerization of (3aR,4R,6aS) 4-methoxy-tetrahydro-furo[3,4-b]-furan-2-one to (3aR,4S,6aS) 4-methoxy-tetrahydro-furo[3,4-b]furan-2-one.