3,4-二甲氧基-5-羟基苯甲酸是一种有用的研究化合物。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3,4-二甲氧基-5-羟基苯甲酸甲酯 | 3-hydroxy-4,5-dimethoxybenzoate | 83011-43-2 | C10H12O5 | 212.202 |
3,4-二甲氧基-5-羟基苯甲醛 | 3-hydroxy-4,5-dimethoxybenzaldehyde | 29865-90-5 | C9H10O4 | 182.176 |
没食子酸 | 3,4,5-trihydroxybenzoic acid | 149-91-7 | C7H6O5 | 170.122 |
3-苯甲酰氧基-4,5-二羟基-苯甲酸 | 3-benzoyloxy-4,5-dihydroxy-benzoic acid | 29970-31-8 | C14H10O6 | 274.23 |
香草醛 | vanillin | 121-33-5 | C8H8O3 | 152.15 |
3-溴-4,5-二甲氧基苯甲酸 | 3-bromo-4,5-dimethoxybenzoic acid | 20731-48-0 | C9H9BrO4 | 261.072 |
3-溴-4,5-二甲氧基苯甲醛 | 5-bromoveratralaldehyde | 6948-30-7 | C9H9BrO3 | 245.073 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3,4-二甲氧基-5-羟基苯甲酸甲酯 | 3-hydroxy-4,5-dimethoxybenzoate | 83011-43-2 | C10H12O5 | 212.202 |
3,4,5-三甲氧基苯甲酸甲酯 | 3,4,5-trimethoxybenzoic acid methyl ester | 1916-07-0 | C11H14O5 | 226.229 |
—— | 3-ethoxy-4,5-dimethoxy-benzoic acid | 214849-37-3 | C11H14O5 | 226.229 |
3,4-二甲氧基-5-羟基苯甲醛 | 3-hydroxy-4,5-dimethoxybenzaldehyde | 29865-90-5 | C9H10O4 | 182.176 |
—— | 3-acetoxy-4,5-dimethoxybenzoic acid | 5444-05-3 | C11H12O6 | 240.213 |
—— | methyl 3-benzyloxy-4,5-dimethoxybenzoate | 26409-24-5 | C17H18O5 | 302.327 |
—— | 3,4-dimethoxy-5-methoxycarbonyloxy-benzoic acid | 854872-79-0 | C11H12O7 | 256.212 |
—— | 3-benzyloxy-4,5-dimethoxybenzyl alcohol | 7632-62-4 | C16H18O4 | 274.317 |
—— | 5-hydroxy-3,4-dimethoxyphthaldehydic acid | 82448-57-5 | C10H10O6 | 226.186 |
—— | 3-[2-(2,4-dichlorophenyl)-ethoxy]-4,5-dimethoxy-benzoic acid | 438571-01-8 | C17H16Cl2O5 | 371.217 |
—— | 5-hydroxy-3,4-dimethoxyphthalic acid | 81892-86-6 | C10H10O7 | 242.185 |
—— | 2-bromo-4,5-dimethoxy-3-hydroxybenzoic acid methyl ester | 236392-94-2 | C10H11BrO5 | 291.098 |
—— | methyl 3,4-dimethoxy-5-[(methylsulfonyl)oxy]benzoate | 1344112-25-9 | C11H14O7S | 290.294 |
—— | 4,5-dimethoxy-3-hydroxy-2-vinylbenzoic acid methyl ester | 236392-95-3 | C12H14O5 | 238.24 |
—— | Iridonitril, 3-Hydroxy-4,5-dimethyl-benzylcyanid | 408335-71-7 | C10H11NO3 | 193.202 |
Further investigation of the South African tree Combretumcaffrum (Combretaceae) for murine P388 lymphocytic leukemia (PS) cell-growth inhibitory substances has led to discovery of three new active constituents designated combretastatins A-2 (5a, PS ED50 0.027 μg/mL), A-3 (5b, PS ED50 0.026 μg/mL), and B-2 (3b, PS ED50 0.32 μg/mL). Both combretastatins A-2 and A-3 were found to markedly inhibit tubulin polymerization. The structure of each combretastatin was firmly established by a combination of high resolution (400 MHz) 1H and 13C nuclear magnetic resonance and mass spectral analyses followed by total syntheses. The conversion of methyl gallate (7b) to combretastatin A-2 via intermediates 7c → 7d → 7e → 7a and 6a → 5a illustrates the practical synthetic route utilized for obtaining these substances. The Wittig reaction employed as the penultimate step in obtaining combretastatins A-3, afforded predominantly the natural Z isomer.