Hypoestoxide, a new diterpene from Hypoestes roses (Acanthaceae) has been assigned the bicyclo[9,3.llpentadecane structure.Recent studies from our laboratories have led to the isolation of two new diterpenes from Hypoestes rosea (~canthaceae)~,~. We now wish to report the isolation and structural determination of another new bicyclo[9,3,llpentadeeane diterpene, hypoestoxide (i) from the same plant.The gum (53.6g) obtained after removal of solvent from the hexane extract of the aerial parts of 5.
Die o‐Acy1aminobenzonitrile (1) reagier‐en mit Grignard‐Verbindungen (II) in Abhängigkeit vom Substituenten R zu Chinazzolinen (III) bzw. Benzodiazepinonen (IV) und (V).
Die Umsetzung acylierter Anthranilsäurenitrile (I) bzw. (V) mit metallorganischen Reagentien wie (III) führt in Abhängigkeit vom Acylrest zu Chinazolinen (II) oder zu Benzdiazepinonen (IV) bzw. (VI).
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