Picrasane quassinoids from Picrasma javanica

• Published in: Phytochemistry (Oxford) Vol. 40; no. 1; pp. 233 - 238
• Main Authors: Koike, Kazuo, Yokoh, Mika, Furukawa, Mika, Ishii, Satoko, Ohmoto, Taichi
• Format: Journal Article
• Language: English
• Published: OXFORD Elsevier Ltd 01.09.1995; Elsevier
• Subjects: Biochemistry & Molecular Biology; Biological and medical sciences; Chemical constitution; Fundamental and applied biological sciences. Psychology; Life Sciences & Biomedicine; Plant physiology and development; Plant Sciences; Science & Technology; quassinoid; dihydrojavanicin Z; Simaroubaceae; javanicin Z; hemiacetaljavanicin Z; Picrasma javanica; JAVANICIN Z; PICRASMA JAVANICA; QUASSINOID; SIMAROUBACEAE; HEMIACETALJAVANICIN Z; DIHYDROJAVANICIN Z; Molecular structure; Dicotyledones; Angiospermae; Bark; Polycyclic compound; Isolation; Lactone; Spermatophyta; Stereochemistry

Three new picrasane quassinoids were isolated from the bark of Picrasma javanica. Their structures were established using spectroscopic data and X-ray analysis. The absolute stereochemistry of their structure was determined by a modified form of Mosher's method and CD spectra.