PROCESS FOR PRODUCING BENZOPIRANE DERIVATIVE OF BLOOD PRESSURE LOWERING ACTIVITY

The invention relates to a process for the preparation of (+/-)-6-cyano-3,4-dihydro-2,2-dimethyl-trans-4-(2-oxo-1-pyrrolidinyl)- 2H-1-benzo py ran-3-ole of the formula (VI) from 4-cyano-phenol of the formula (I) which comprises reacting 4-cyano-phenol of the formula (I) with isoprene at 30 - 120 C i...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TIMAR,TIBOR,HU, GALAMB,VILMOS,HU, ISTVAN,ZOLTANNE,HU, ESZENYI,TIBOR,HU, SEBOEK,PETER,HU, NAGYNE CSAKI,ERIKA,HU, FAZEKAS,LAJOSNE,HU, KOVACH,ALMOSNE,HU
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
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