Detail of "981-15-7"

Reference

Structure determination of bitter principles in Ailanthus altissima

Structure determination of bitter principles in Ailanthus altissima. Structure of shinjulactone A and revised structure of ailanthone. Naora, Hirokazu; Ishibashi, Masami; Furuno, Tetsuo; Tsuyuki, Takahiko; Murae, Tatsushi; Hirota, Hiroshi; Takahashi, Takeyoshi; Itai, Akiko; Iitaka, Yoichi (Fac. Sci., Univ. 89353-91-3 and 981-15-7 are cas registry numbers. These chemicals are also mentioned in this article. Tokyo, Tokyo 113, Japan). Bull. Chem. Soc. Jpn., 56(12), 3694-8 (English) 1983. CODEN: BCSJA8. ISSN: 0009-2673. DOCUMENT TYPE: Journal CA Section: 11 (Plant Biochemistry) The structure of a new bitter principle, shinjulactone A, isolated from A. altissima was detd. to be 11b,20-epoxy-1b,2a,11a,12a-tetrahydroxypicrasa-3,13(21)-dien-16-o ne (I) and configuration of a OH group at C-12 of ailanthone was revised to a-orientation by x-ray anal. .

Constituents of the root bark of Ailanthus altissima Swingle

Constituents of the root bark of Ailanthus altissima Swingle. Isolation and x-ray crystal structures of shinjudilactone and shinjulactone C and conversion of ailanthone into shinjudilactone. Ishibashi, Masami; Tsuyuki, Takahiko; Murae, Tatsushi; Hirota, Hiroshi; Takahashi, Takeyoshi; Itai, Akiko; Iitaka, Yoichi (Fac. Sci., Univ. 981-15-7 and 1259-86-5 are cas registry numbers. These chemicals are also mentioned in this article. Tokyo, Tokyo 113, Japan). Bull. Chem. Soc. Jpn., 56(12), 3683-93 (English) 1983. CODEN: BCSJA8. ISSN: 0009-2673. DOCUMENT TYPE: Journal CA Section: 11 (Plant Biochemistry) The new quassinoids, shinjudilactone (I) and shinjulactone C (II), were isolated from the root bark of A. altissima and their structures were established to be 1b,11a-dihydroxy-2,16-dioxo-13(12 ? 11a)abeo-picras-3-en-12,20-olide and 1a,12a: 5a,13a-dicyclo-1b,12b,20-trihydroxy-9bH-picras-3-ene-2,11,16-trione, resp., by x-ray diffraction anal. I was prepd. from ailanthone by benzilic acid rearrangement. .