CONVERSION OF TRYPTOPHAN INTO .BETA.-CARBOLINE DERIVATIVES
The invention belongs in the field of organic chemistry and relates to a new shortened Pictet- Spengler type reaction for preparing isomerically pure ß-carboline compounds useful for the synthesis of tadalafil.
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| Format: | Patent |
| Sprache: | eng ; fre |
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| Zusammenfassung: | The invention belongs in the field of organic chemistry and relates to a new shortened Pictet- Spengler type reaction for preparing isomerically pure ß-carboline compounds useful for the synthesis of tadalafil. |
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