Drüsenfarbstoffe aus tropischen Labiaten: Parviflorone aus <i>Plectranthus strigosus</i> B<sub>ENTH.</sub>

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<jats:title>Abstract</jats:title><jats:p><jats:bold>Red‐Coloured Abietanoids from Leaf‐Glands of <jats:italic>Plectranthus strigosus</jats:italic> B<jats:sc>ENTH</jats:sc>.</jats:bold></jats:p><jats:p>Chromatographic examination of the red‐coloured diterpenoids from the South‐African title plant yielded the following compounds: parviflorone <jats:bold>A(1)</jats:bold>, parviflorone B <jats:bold>(2)</jats:bold>, parviflorone <jats:bold>C(3)</jats:bold>, parviflorone E <jats:bold>(4)</jats:bold> parviflorone D <jats:bold>(5)</jats:bold>, parviflorone F <jats:bold>(6)</jats:bold>, parviflorone G <jats:bold>(7)</jats:bold>, and parviflorone H <jats:bold>(8)</jats:bold>. Compounds <jats:bold>7</jats:bold> and <jats:bold>8</jats:bold> represent new variants of these quinone methides.</jats:p>

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