Synthesis of the Marine Compound (2<i>R</i>,5<i>Z</i>,9<i>Z</i>)-2-Methoxyhexacosa-5,9-dienoic Acid via a Lipase-Catalyzed Resolution and a Novel O-Alkylation Protocol
作者:Subrata Chattopadhyay、Bheemashankar A. Kulkarni、Anubha Sharma、Sunita Gamre
DOI:10.1055/s-2004-815963
日期:——
been synthesized by a facile route starting from 4-pentyn-1-ol. The enantioselectivity was attained by a strategy involving a lipase-catalyzed acetylation of a solid-phase immobilized long chain α-hydroxy acid. Another important feature of the synthesis was the formulation of an efficient HgO-catalyzed O-methylation of the α-hydroxy acids which proceeded without any racemization. The alkylation protocol
标题化合物已通过从 4-pentyn-1-ol 开始的简便路线合成。对映选择性是通过涉及脂肪酶催化的固相固定长链α-羟基酸乙酰化的策略实现的。该合成的另一个重要特征是在没有任何外消旋化的情况下进行了有效的 HgO 催化的 α-羟基酸的 O-甲基化。烷基化方案对于对称二醇的选择性单甲基化/苄基化也非常有效。