Sablacaurin A and B, Two 19‐nor‐3,4‐seco‐Lanostane‐Type Triterpenoids from Sabal causiarum and Sabal blackburniana, Respectively.

Abstract

Sablacaurin A and B, Two 19-nor-3,4-seco-Lanostane-Type Triterpenoids from Sabal causiarum and Sabal blackburniana, Respectively. -(EL-DIB, R.; KALOGA, M.; MAHMOUD, I.; SOLIMAN, H. S. M.; MOHARRAM, F. A.; KOLODZIEJ*, H.; Phytochemistry 65 (2004) 8, 1153-1157; Inst.

Triterpenoids

“…31 Two spiro-lanostanes, sablacaurins A 18 and B 19, have been reported from Sabal causiarum and Sabal blackburniana, respectively. 32 Abies koreana contains the ring A seco-lanostatrienedioic acid 20 and the lanostene derivative 21. 33 Fornicatins A 22 and B 23 are ring A seco-lanostanes from Ganoderma fornicatum.…”

Hydrophobic Metabolites from Rhododendron formosanum and their Allelopathic Activities

“…Eighteen known compounds were isolated from the six fractions obtained by column chromatography from the methanolic extract of R. formosanum leaves [5]. Fraction 1 gave β-amyrin acetate (1) (10 mg) [6], squalene (2) (15 mg) [7] and glut-5-en-3β-yl acetate (3) (14 mg) [8]. Fraction 2, using n-hexane-dichloromethane (75:25) as eluent, gave α-tocopherol (4) (10 mg), friedelin (5) (25 mg), and methyl ferulate (6) (4 mg).…”