Elimination reactions. Part II. Pyrolytic and base-promoted decompositions of thujyl compounds
作者:D. V. Banthorpe、H. ff. S. Davies
DOI:10.1039/j29680001339
日期:——
known stereospecificity of these reactions, the results confirm recently assigned configurations for the alcohols. Hofmann degradation of the four thujyltrimethylammonium hydroxides gave products attributable to concurrent anti- and syn-eliminations, and tracerstudies showed that part of the latter process from the isothujyl ‘onium compound involved the α′-β mechanism. Pyrolysis of thujyl acetates and
Synthesis and evaluation of apoptotic induction of human cancer cells by ester derivatives of thujone
作者:Emily Castner、Matthew Dickson、Anna Mykytyn、Navindra P. Seeram、Geneive E. Henry、Pavithra Vivekanand
DOI:10.1007/s00044-019-02481-8
日期:2020.2
Thujone (1), thujol (2), and aromatic thujol esters (3–9) were evaluated for their ability to induce cell death in human cervical (HeLa), melanoma (A375), and colon (HCT-116) cancer cell lines, using etoposide as a positive control. The compounds showed dose-dependent activity at concentrations ranging from 50–400 μg/mL. Etoposide exhibited an IC50 value of 116 μg/mL in HeLa cells, and α-thujone, α/β-thujone
评估了丁香(1),丁香(2)和芳族丁香酸酯(3–9)在人宫颈癌(HeLa),黑素瘤(A375)和结肠癌(HCT-116)癌细胞系中诱导细胞死亡的能力。 ,使用依托泊苷作为阳性对照。这些化合物在50–400μg/ mL的浓度范围内表现出剂量依赖性的活性。依托泊苷在HeLa细胞中的IC 50值为116μg/ mL,α-thujone,α/β-thujone(7:1)和thujol表现出可比的活性,IC 50值为191、198和136μg / mL , 分别。所有七个酯衍生物均对HeLa和HCT-116细胞具有细胞毒性,而其中一部分对A375细胞具有细胞毒性。在HeLa细胞中,叔肉桂酸(4),叔异烟酸(5),t-烟酸酯(6)和t-糠酸酯(8)比α-thujone或α/β-thujone更有效。同样,在A375细胞中,糠酸叔丁酯(8)比丁香酮更有效,而异烟酸叔丁酸(5)和叔烟酸酯(6)对HCT-1
1,2 Hydrogen-shifts in the biosynthesis of the thujane skeleton
作者:Derek V. Banthorpe、John Mann、Ian Poots
DOI:10.1016/0031-9422(77)80012-5
日期:1977.1
Abstract Degradation of (+)-isothujone ( trans -thujan-3-one) biosynthesized in Tanacetum vulgare from (3 RS )-mevalonic acid (MVA)-[2- 14 C, 2- 3 H 2 ] showed that one hydrogen from C-2 of the precursor was specifically incorporated at C-4 of product whereas the other was lost. Feeding of α-terpineol-[9- 14 C, 4- 3 H 1 , 10- 3 H 3 ] ( p -menth-1-en-8-ol) yielded isothujone with the same isotope ratios