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Unusual ent-isopimarane-type diterpenoids from the wood of Excoecaria agallocha
Abstract Three new ent -isopimarane-type diterpenoids with unusual 3,4-seco ( 1 ) and seven membered lactone moieties ( 1 – 2 ), along with four known compounds ( 4 – 7 ) were isolated from the woodExpand
Epimeric Excolides from the Stems of Excoecaria agallocha and Structural Revision of Rhizophorin A.
Excolides A-B (1-4) represent the first examples of a new class of secolabdanoids with an unprecedented framework, which were isolated from the stems of Excoecaria agallocha. Their structures wereExpand
Unusual isomeric corniculatolides from mangrove, Aegiceras corniculatum.
Four new isomeric macrolides of combretastatin D-2 congeners named isocorniculatolide A (1), 11-O-methylisocorniculatolide A (2), 11-O-methylcorniculatolide A (3), andExpand
Biotransformation of agallochaexcoerin A by Aspergillus flavus
Agallochaexcoerin A (1), a seco-manoyl oxide diterpenoid was metabolised by pathogenic fungus, Aspergillus flavus, in growth media to yield a new metabolite, termed agallochaexcoerin G (2). It wasExpand
α-Glucosidase inhibitory monoacylated polyhydroxytriterpenoids from the fruits of Barringtonia racemosa
Abstract Chemical investigation of a lipophilic CHCl 3 extract of the dried fruits of Barringtonia racemosa resulted in the isolation of two unusual monoacylated polyhydroxy oleanane triterpenoidExpand
α‐Glucosidase Inhibitory Monoacylated Polyhydroxytriterpenoids from the Fruits of Barringtonia racemosa.
Monoacylated polyhydroxy triterpenoids racemosol C (I) and racemosol D (II) encountered in this study are unusual and exhibit excellent α-glucosidase inhibition and moderate cytotoxicity.