Structures of new secofriedelane and friedelane acids from Calophyllum inophyllum of French Polynesia.
Three new friedelane-type triterpenoids, 3,4-secofriedelan-3,28-dioic acid (1), 27-hydroxyacetate canophyllic acid (2) and 3-oxo-27-hydroxyacetate friedelan-28-oic acid (3), were isolated from the leaves of Calophyllum inophyllum (Clusiaceae) grown in French Polynesia. Their structures were established by the concerted application of 2D NMR techniques including gs-COSY, gs-HMQC and gs-HMBC.
Laboratoire de Chimie Analytique Appliquée, Université de la Polynésie Française, BP 6570, 98702 Faaa, Tahiti, French Polynesia.
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F
Laure
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Herbette
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Faure
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Bianchini
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Raharivelomanana
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Fogliani
D029759:Calophyllum / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008958:Models, Molecular; D008968:Molecular Conformation; D011114:Polynesia; D013729:Terpenes / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry
D013729:Terpenes; D014315:Triterpenes; C421805:friedelane