PROCESS FOR THE PREPARATION OF 5-FLUOROTRYPTOPHOL
The present invention relates to a process for the preparation of 5-fluorotryptophol as well as a process for the preparation of (1r,4r)-6′-fluoro-N,N-dimethyl-4-phenyl-4′,9′-dihydro-3′H-spiro[cyclohexane-1,1′-pyrano-[3,4b]-indol]-4-amine using the 5-fluorotryptophol obtained by said first process....
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| Format: | Patent |
| Sprache: | eng ; hun |
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| Zusammenfassung: | The present invention relates to a process for the preparation of 5-fluorotryptophol as well as a process for the preparation of (1r,4r)-6′-fluoro-N,N-dimethyl-4-phenyl-4′,9′-dihydro-3′H-spiro[cyclohexane-1,1′-pyrano-[3,4b]-indol]-4-amine using the 5-fluorotryptophol obtained by said first process. The process according to the invention provides 5-fluorotryptophol in improved yield and purity without the need for chromatographic purification of the product. |
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