Marine terpenes and terpenoids. VII. Minor cembranoid derivatives, structurally related to the potent anti-tumor-promoter sarcophytol A, from the soft coral Sarcophyton glaucum.
摘要:
八种新西松烷类化合物:肌醇 M (3)、肌醇 N (9a)、肌醇 J (11a)、肌醇 H 及其二乙酸酯(15a 和 15b)、肌醇 O (18)、肌醇 I (19a) 和肌醇 G (24a) 、以及已知的西松烷类化合物 nephthenol (7) 和 Sinulariol D (8),是从软珊瑚 Sarcophyton glaucum 中分离出来的。它们的结构是通过光谱特性和化学转化确定的。Sarcophytol M (3) 被发现是其对映体来自陆地植物的已知化合物西柏烯醇。 Sarcophytol N (9a) 和 sarcophytol J (11a) 是主要成分 sarcophytol A (1a) 和 sarcophytol B (2a) 的 C-3 几何异构体,它们具有有效的抗肿瘤作用Sarcophytol H 和 sarcophytol O 分别与之前从 1a 合成的二醇 15a 和 18 相同。 Sarcophytol I (19a) 和 sarcophytol G (24a) 是已知化合物 sarcophytol E (22a) 和 sarcophytol 的非对映异构体D (21a) 分别,其绝对构型通过两种 11、12E-环氧化物(20 和 23)的化学转化确定。
Six new cembrane-type diterpenoids, namely ximaoglaucumins A−F (1−6), along with fifteen known related ones (7−10 and 14−24), have been isolated from the softcoralSarcophytonglaucum collected off the Ximao Island in the South China Sea. Their structures, including absolute stereochemistry, were elucidated by extensive spectroscopic analysis, quantum mechanical nuclear magnetic resonance (QM-NMR)
KOBAYASHI, MASARU;OSABE, KATSUNORI, CHEM. AND PHARM. BULL., 37,(1989) N, C. 1192-1196
作者:KOBAYASHI, MASARU、OSABE, KATSUNORI
DOI:——
日期:——
KOBAYASHI, MASARU;OSABE, KATSUNORI, CHEM. AND PHARM. BULL., 37,(1989) N, C. 631-636
作者:KOBAYASHI, MASARU、OSABE, KATSUNORI
DOI:——
日期:——
Marine terpenes and terpenoids. VII. Minor cembranoid derivatives, structurally related to the potent anti-tumor-promoter sarcophytol A, from the soft coral Sarcophyton glaucum.
作者:Masaru KOBAYASHI、Katsunori OSABE
DOI:10.1248/cpb.37.631
日期:——
Eight new cembranoids, sarcophytol M (3), sarcophytol N (9a), sarcophytol J (11a), sarcophytol H and its diacetate (15a and 15b), sarcophytol O (18), sarcophytol I (19a) and sarcophytol G (24a), and known cembranoids nephthenol (7) and sinulariol D (8), were isolated from the soft coral Sarcophyton glaucum.Their structures were determined from the spectroscopic properties and by chemical conversion.Sarcophytol M (3) was found to be the enantiomer of the known compound cembrenol from a terrestrial plant.Sarcophytol N (9a) and sarcophytol J (11a) were the geometrical isomers at C-3 of the major components sarcophytol A (1a) and sarcophytol B (2a), which are potent anti-tumor-promoters.Sarcophytol H and sarcophytol O were identical with the diols 15a and 18, respectively, which were previously synthesized from 1a.Sarcophytol I (19a) and sarcophytol G (24a) were the diastereoisomers of the known compounds sarcophytol E (22a) and sarcophytol D (21a), respectively, and their absolute configurations were determined by chemical conversion of two 11, 12E-epoxides (20 and 23).
八种新西松烷类化合物:肌醇 M (3)、肌醇 N (9a)、肌醇 J (11a)、肌醇 H 及其二乙酸酯(15a 和 15b)、肌醇 O (18)、肌醇 I (19a) 和肌醇 G (24a) 、以及已知的西松烷类化合物 nephthenol (7) 和 Sinulariol D (8),是从软珊瑚 Sarcophyton glaucum 中分离出来的。它们的结构是通过光谱特性和化学转化确定的。Sarcophytol M (3) 被发现是其对映体来自陆地植物的已知化合物西柏烯醇。 Sarcophytol N (9a) 和 sarcophytol J (11a) 是主要成分 sarcophytol A (1a) 和 sarcophytol B (2a) 的 C-3 几何异构体,它们具有有效的抗肿瘤作用Sarcophytol H 和 sarcophytol O 分别与之前从 1a 合成的二醇 15a 和 18 相同。 Sarcophytol I (19a) 和 sarcophytol G (24a) 是已知化合物 sarcophytol E (22a) 和 sarcophytol 的非对映异构体D (21a) 分别,其绝对构型通过两种 11、12E-环氧化物(20 和 23)的化学转化确定。
Kobayashi, Masaru; Osabe, Katsunori, Chemical and pharmaceutical bulletin, 1989, vol. 37, # 5, p. 1192 - 1196