Polyphenols caffeic acid (1), rosmarinic acid (2), nepetoidins A and B (3) and diterpenoids 7. β,6. β-dihydroxyroyleanone (4) and 7. β-acetoxy-6. β-hydroxyroyleanone (5) were identifiedin the methanolic extract of Plectranthus forsteri 'Marginatus' Benth. 6,7-dehydroroyleanone (6) was isolated from essential oil. The structure was identified using spectroscopic analysis and comparing it to standards. © 2013 Elsevier Ltd.
Polyphenols and diterpenoids from Plectranthus forsteri 'Marginatus'
DALL'ACQUA, STEFANO;
2013
Abstract
Polyphenols caffeic acid (1), rosmarinic acid (2), nepetoidins A and B (3) and diterpenoids 7. β,6. β-dihydroxyroyleanone (4) and 7. β-acetoxy-6. β-hydroxyroyleanone (5) were identifiedin the methanolic extract of Plectranthus forsteri 'Marginatus' Benth. 6,7-dehydroroyleanone (6) was isolated from essential oil. The structure was identified using spectroscopic analysis and comparing it to standards. © 2013 Elsevier Ltd.
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