中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
(E)-2-(3-羟基-4-甲氧基-苯基)-3-(3,4,5-三甲氧基苯基)丙-2-烯酸 | (E)-2-(3-hydroxy-4-methoxyphenyl)-3-(3,4,5-trimethoxyphenyl)acrylic acid | 869497-71-2 | C19H20O7 | 360.364 |
—— | (E)-2-(3-amino-4-methoxyphenyl)-3-(3,4,5-trimethoxyphenyl)acrylic acid | 942912-87-0 | C19H21NO6 | 359.379 |
A concise route to two anti-tubulin natural products combretastatin A-4 and erianin has been developed. Combretastatin A-4 was obtained by a Perkin reaction between 3-bromo-4-methoxyphenyl acetic acid and 3,4,5-trimethoxybenzaldehyde, hydroxyl transformation, decarboxylation with a high level of cis-selectivity ( cis/trans = 95/5), and erianin was obtained by subsequent hydrogenation. The overall yields of combretastatin A-4 and erianin were 37.5 and 30.8%, respectively.