Secondary Metabolites from the Wood Bark of Durio zibethinus and Durio kutejensis.

Study of Conformational Preferences of Erythro-Carolignan E Assessed by the Coupling Between H7'-H8' in Different NMR Solvents

“…Thus, the conformational preferences for compound 1 will be characterized. In this study, we also isolated other known compounds boehmenan and boehmenan X (Rudiyansyah et al, 2006(Rudiyansyah et al, , 2010(Rudiyansyah et al, , 2014.…”

“…In previous studies, six carolignan compounds, namely erythro-carolignan E (1), threo-carolignan E, erythro-carolignan X, threo-carolignan X, erythro-carolignan Y and threo-carolignan Y, have been isolated from the wood bark of D. zibethinus, D. carinatus and D. oxleyanus (Rudiyansyah et al, 2006(Rudiyansyah et al, , 2010Lim, 2012). Rudiyansyah et al (2010) have reported the conformational preferences for erythro-and threo-carolignan X in the NMR solvents CDCl 3 and CD 3 OD.…”

Cytotoxic lasiodiplodin derivatives from the fungus Syncephalastrum racemosum

“…Two (Solladié et al, 1990) and {[α] D +9 (c 1.0, CHCl 3 )} (Rudiyansyah and Garson, 2006). Known compound 5 was established as (3R), (5R)-5-hydroxy-de-O-methyllasiodiplodin from the spectroscopic evidence and by comparison with the reported literature (Yang et al, 2000).…”

Determination of Antioxidant and Anti-Melanogenesis Activities of Indonesian Lai, <i>Durio kutejensis</i> [Bombacaceae (Hassk) Becc] Fruit Extract

“…Some active compounds might be involved inhibit melanin production in B16 melanoma cells. Rudiyansyah and Garson were reported that wood bark of Durio kutejensis contained triterpenes (3-O-trans-caffeoyl-2-hydroxyolean-12-en-28-oic acid, 3-O-trans-caffeoyl-2 -hydroxytaraxest-12-en-28-oic acid, maslinic acid, and arjunolic acid), quinone (2,6-dimethoxyp-benzoquinone), and coumarin (fraxidin) [17]. The active compounds of triterpene, quinone and coumarin were reported as melanin inhibitor [18][19][20].…”