ABSTRACT
The present study is to investigate the chemical constituents from the dried ripe fruits of Vitex trifolia var. simplicifolia The compounds were isolated by using a variety of chromatographic methods including silicagel, ODS, Sephadex LH-20, reversed-phase HPLC, and other methods. Their structures were identified by NMR, and MS date. As a result, 18 compounds were isolated and identified as ent-2-oxo15,16,19-trihydroxypimar-8(14)-ene (1), chrysosplenol D (2), casticin (3), luteolin (4), eupatrin (5), apigenin (6), 5,4'-dihydroxy-3,6,7-trimethoxyflavone (7), luteolin-4'--glucoside (8), hypolaetin-7---D-glucopyranoside (9), swertisin (10), agestricin D (11), 5,3'-dihydroxy-6,7,4'-trimethoxyflavanone (12), tomentic acid (13), 2α,3,23-trihydroxyolean-12-en-28-oic acid (14), 3'-acetoxy-4'-angeloyloxy-3',4'-dihydroseselin (15), dihydrodehydrodiconiferyl alcohol (16), 3,5'-dimethoxy-4',7-epoxy-8,3'-neolignane-5,9,9'-triol (17) and salicifoliol (18). Among them, compounds 1, 2, 5-15, 17 and 18 were obtained from V. trifolia var. simplicifolia Cham for the first time and compounds 1, 5, 7-11, 15, 17 and 18 were isolated from thegenus Vitex for the first time.
ABSTRACT
To study sesquiterpenes with anti-metastasis breast cancer activity from Chloranthus henryi, ten sesquiterpenes ,zedoarofuran (1), chlorajapolide D (2), 4β, 8β-dihydroxy-5α(H)-eudesm-7(11)-en-8, 12-olide (3), curcolonol (4), lasianthuslactone A (5), chlomultin C (6), (1E,4Z)-8-hydroxy-6-oxogermacra-1(10), 4, 7(11) -trieno-12, 8-lactone (7), shizukanolide E (8) , shizukanolide F (9) , 9α-hydroxycurcolonol (10), and five bis-sesquiterpenes, shizukaol B (11), shizukaol C (12) , cycloshizukaol A (13) , sarcandrolide B (14) , henriol A(15), were isolated by using different kinds of column chromatography methods from the ethyl acetate part of Ch.henryi and their structures were identified based on spectroscopic methods. Compounds 2, 8, 9, and 10 were obtained from the genus Chloranthus for the first time. Compounds 2, 5, 8-10, 12,and 14 were obtained from this plant for the first time. Some isolated compounds were subjected to evaluate the anti-metastasis breast cancer activity by using pharmacological methods, and only compounds 4, 11, and 12 were potent active.
ABSTRACT
To investigate the chemical constituents from the shoots of Chloranthus multistachys.All compounds wereisolated by using a combination of various chromatographic techniques including silica gel, ODS, Sephadex LH-20, reversed-phase HPLC, and other methods.Their structures were elucidated by the nuclear magnetic resonance (NMR), mass spectrometry, and other modernspectroscopies.As a result, 19 compounds were isolated from the shoots of C.multistachys and identified as zederoneepoxide(1), chlomultin C(2), curcolonol(3), sarcaglaboside A(4), zedoarofuran(5), (1E,4Z)-8-hydroxy-6-oxogermacra-1(10), 4,7(11)-trieno-12,8-lactone(6), chloranoside A(7), istanbulin A(8), (8α)-6,8-dihydroxycadina-7(11),10(15)-dien-12-oicacid-γ-lactone(9), codonolactone(10), lasianthuslactone A(11), 12,15-epoxy-5αH,9βH-labda-8(17),13-dien-19-oicacid(12), 12R,15-dihydroxylabda-8(17),13E-dien-19-oicacid(13), N-transcinnamoyltyramine(14), trans-N-p-coumaroyltyramine(15), dibutyl phthalate (16), flavokawain A(17), bergenin(18), and enedione(19).Compounds 1, 2, 4, 7-10, 12-19 were isolated from C.multistachys for the first time and compounds 14-19 were obtained from the genus Chloranthus for the first time.
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the clinical application of the custom shade guide of tetracycline stained teeth in color matching.</p><p><b>METHODS</b>Forty-two patients with 59 tetracycline stained teeth were included in this study. Color matching was performed with Shofu shade guide and custom shade guide of tetracycline stained teeth. According to the two results, two porcelain fused to metal crowns were fabricated for each tooth. Evaluations were made both visually by dentists and patients and with ShadeEye NCC.</p><p><b>RESULTS</b>Color difference between prostheses made according to custom shade guide and natural teeth was (7.80 +/- 4.70). Color difference between prostheses made according to Shofu shade guide and natural teeth was (10.68 +/- 4.70). Both visual evaluation and ShadeEye NCC evaluation showed that the custom shade guide provided a more accurate shade selection than the Shofu shade guide did, and the difference between the two shade guides was significant (t = 7.328, P < 0.001).</p><p><b>CONCLUSIONS</b>The custom shade guide of tetracycline stained teeth provided a standard for clinical shade matching for the tetracycline stained teeth and could be a supplement to Shofu shade guide.</p>