PROCESS FOR THE SYNTHESIS OF A KNOWN TETRAZOL DERIVATIVE

PROCESS FOR THE SYNTHESIS OF A KNOWN TETRAZOL DERIVATIVE

A Process is disclosed for preparing a compound of the Formula (I)which comprises the steps of:(a) detritylating a compound of the Formula (III)with 0.1 to 1 equivalent of potassium hydroxide in a C1 to C4 straight chain alcohol solvent to obtain a reaction mixture containing the compound of the For...

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Hauptverfasser: PETENYI, ENDRENE, BALLO, ILDIKO, WERKNE PAPP, EVA, HEGEDUS, ISTVAN, CZIBULA, LASZLO, FISCHER, JANOS, KREIDL, JANOS, NEMES, ANDRAS, NAGYNE BAGDY, JUDIT, FARKAS, JENOENE, DEUTSCHNE JUHASZ, IDA
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A Process is disclosed for preparing a compound of the Formula (I)which comprises the steps of:(a) detritylating a compound of the Formula (III)with 0.1 to 1 equivalent of potassium hydroxide in a C1 to C4 straight chain alcohol solvent to obtain a reaction mixture containing the compound of the Formula (I),(b) changing the C1 to C4 straight chain alcohol solvent in the reaction mixture to an aprotic solvent or a weakly protic solvent, and(c) following step (b) crystallizing out the compound of the Formula (I) from the reaction mixture.