中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | Methyl 3,5-bis(methoxyethoxyethoxyethoxy)benzoate | 288850-03-3 | C22H36O10 | 460.522 |
3,5-二羟基苯甲醇 | 3,5-Dihydroxybenzyl alcohol | 29654-55-5 | C7H8O3 | 140.139 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 3,5-di-(3',5'-di-[1'',4'',7'',10''-tetraoxaundecyl]benzyloxy)benzyl alcohol | 246140-12-5 | C49H76O19 | 969.131 |
—— | 3,5-bis-{2-[2-(2-methoxy-ethoxy)-ethoxy]-ethoxy}-benzaldehyde | 206049-38-9 | C21H34O9 | 430.496 |
—— | Methyl 3,5-bis(methoxyethoxyethoxyethoxy)benzyl bromide | 246140-08-9 | C21H35BrO8 | 495.408 |
—— | 3,5-di-(3',5'-di-[1'',4'',7'',10''-tetraoxaundecyl]benzyloxy)benzyl bromide | 288850-04-4 | C49H75BrO18 | 1032.03 |
—— | 4-(3',5'-di-[1'',4'',7'',10''-tetraoxaundecyl]benzyloxy)phthalonitrile | 571150-62-4 | C29H38N2O9 | 558.629 |
—— | Bis[[3,5-bis[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]phenyl]methyl] pyridine-3,5-dicarboxylate | 1273947-74-2 | C49H73NO20 | 996.113 |
Photosensitizers can produce highly reactive singlet oxygen with exposure to visible light and are used in photodynamic therapy to treat a variety of tumors. We report on the synthesis of triethylene glycol dendron-conjugated pheophorbide-a5, a novel photosensitizer. The characteristic absorption bands (Soret and Q-bands, λmax = 405 and 670 nm, respectively) of 5 were appeared clearly in aqueous solution, due to the improved water-solubility of the dendron moiety. The value of singlet oxygen quantum yield of 5 (ΦΔ = 0.22) was higher than free pheophorbide-a (ΦΔ = 0.17) as reference in aqueous solution. Compound 5 also exhibited an enhanced in vitro phototoxicity than pheophorbide-a (PhA) in the concentration range of 1.0–5.0 μg/mL: cell viability in cells treated with 5 was reduced by ~20%, indicating a cell death rate of ~80%, while PhA treatment resulted in a cell death rate of only about 10%. These results indicate that 5 will likely be more efficient in PDT applications. Compared with free PhA, compound 5 showed highly enhanced singlet oxygen generation ability and in vitro photocytotoxicity.