A new synthesis of isoflavanoids has been developed by treatment of a
salicylaldehyde with an arylglycidate salt. Reaction
conditions have been found so that this condensation yields either a
2,4-dihydroxyisoflavan or a 2-hydroxyisoflav-3-ene. A 2-hydroxyisoflav-3-ene
such as (8a) can then be converted into the isoflavylium
salt (9b), isoflavan (11b),
2-hydroxyisoflavan (11a), isoflav-2-ene (13) or isoflav-3-ene (10d). Similarly,
the 2-aminoisoflav-3-ene derivative (10f) can be obtained from (8d). The reaction
of isoflavylium salts or (8a) with
3-mercaptopropionic acid gives isoflav-3-ene derivatives (15) potentially
useful as haptens for conjugation with suitable
macromolecules for the generation of antibodies.
通过将水杨醛与芳基甘氨酸盐进行处理,开发出了一种新的异黄酮合成方法。
水杨醛与芳基甘氨酸盐的新合成方法。反应条件
条件,使这种缩合反应可以生成
2,4-二羟基异黄烷或 2-羟基异黄烷-3-烯。2- 羟基异黄-3-烯
如 (8a),然后可以转化成异黄烷鎓盐 (9b)、异黄烷鎓盐 (9b)
盐 (9b)、异黄烷 (11b)、
2-羟基异黄烷(11a)、异黄酮-2-烯(13)或异黄酮-3-烯(10d)。类似地
2-氨基异黄-3-烯衍生物(10f)可由(8d)得到。反应
异黄酮盐或 (8a) 与
3-巯基丙酸反应,可得到异黄酮-3-烯衍生物(15)。
作为触媒,可与合适的大分子共轭,生成
与合适的大分子共轭,从而产生抗体。