42923-60-4Relevant articles and documents
Design and synthesis of arylnaphthalene lignan lactone derivatives as potent topoisomerase inhibitors
Chen, Wang,Feng, Zili,Hu, Daihua,Meng, Jin
, p. 856 - 865 (2021/10/21)
Background: Arylnaphthalene lignan lactones are a class of natural products containing the phenyl-naphthyl skeleton. Some arylnaphthalene lignan lactones have been used in clinical practice as antitumor agents, due to their cytotoxicity and inhibitory activities against DNA topoisomerase I (Topo I) and topoisomerase II (Topo II). Objective: This study presents the design and synthesis of arylnaphthalene lignan lactones derivatives. The inhibitory activities against Topo I and Topo IIα and antitumor activities of these compounds were assayed. Methods: A series of arylnaphthalene lignan lactones derivatives have been designed and synthesized, using the Diels-Alder reaction and Suzuki reaction as the key steps. Their antiproliferation activities were evaluated by sulforhodamine B assay on human breast cancer MDAMB-231, MDA-MB-435 and human cervical cancer HeLa cells. DNA relaxation assays were employed to examine the inhibitory activity of compounds 1-22 on Topo I and Topo IIα in vitro. Flow cytometry analysis was performed to study the drug effects on cell cycle progressions. Results: Seven compounds exhibited the modest anti-proliferation activity with IC50 values between 1.36 and 20 μM. Compounds 3, 19 and 22 showed potent inhibitory activities with IC50 values less than 1 μM. DNA relaxation assay revealed that compound 22 showed potent inhibitory activity against Topo IIα in vitro. Compound 22 also induced DNA breaks in MDA-MB-435 cells evidenced by comet tails and the accumulation of γ-H2AX foci. The ability of 22 in inducing DNA breaks mediated by Topo IIα resulted in G2/M phase arrest and apoptosis. Conclusion: This work indicates that arylnaphthalene lignan lactones derivatives represent a novel type of Topo IIα inhibitory scaffold for developing new antitumor chemotherapeutic agents.
A convenient total synthesis of (+/-)-jatrophan and 2,3-bis-(hydroxymethyl)-6,7-methylenedioxy-1-(3',4'-dimethoxyphenyl)naphthalene, lignan constituents of Jatropha gossypifolia Linn.
Banerji, J,Bose, P,Chakrabarti, R,Das, B
, p. 709 - 712 (2007/10/02)
Convenient synthetic routes to (+/-)-jatrophan and 2,3-bis-(hydroxymethyl)-6,7-methylenedioxy-1-(3',4'-dimethoxyphenyl)naphthalene; the constituents of Jatropha gossypifolia Linn. have been reported.Stobbe condensation of piperonal with dimethyl succinate followed by methylation affords 4-(3',4'-methylenedioxyphenyl)-3-methoxy-carbonyl-methylbut-3-enoate.A second Stobbe condensation with veratraldehyde followed by Bouveault-Blanc reduction affords (+/-)-jatrophan.The aryl naphthalene lignan, 2,3-bis-(hydroxymethyl)-6,7-methylenedioxy-1-(3',4'-dimethoxyphenyl)naphthalene, has been synthesised from jatrophan by oxidative cyclisation followed by lithium aluminum hydride reduction.
DDQ-Cyclodehydrogenation: Syntheses of 1-Phenylnaphthalenic Lignans
Satyanarayana, P.,Rao, P. Koteswara
, p. 151 - 153 (2007/10/02)
1,2-Diarylidenesuccinic anhydrides (Ia-c) when refluxed with 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) and dry HCl in anhyd. benzene undergo cyclization to give 1-phenylnaphthalene-2,3-dicarboxylic anhydrides (IIa-d) in 65-70percent yields.Starting from the anhydrides IIc and IId, syntheses of retochinensin (Vc), chinensin (VIc), retrojusticidin-B (Vd) and justicidin-B (VId) have been achieved.