Improved method for the isolation of geranyl esters of (4E/Z,8E)- and (4E/Z,8Z)-farnesylacetic acid
作者:A. G. Nigmatov、é. P. Serebryakov、L. A. Yanovskaya
DOI:10.1007/bf00758769
日期:1987.7
The geranyl esters of 4E,8E-farnesylacetic acid and its stereomers are effective agents for the prophylaxis and treatment of gastric ulcers [i0]. The synthesis utilizing malonic ester is a simple method for the isolation of these compounds [6, 8]. We improved this principal scheme by the modification and simplification of the separate stages of the synthesis. The scheme permits the isolation of the
4E,8E-法呢基乙酸的香叶酯及其立体异构体是预防和治疗胃溃疡的有效药物 [i0]。利用丙二酸酯进行合成是一种分离这些化合物的简单方法 [6, 8]。我们通过修改和简化合成的各个阶段来改进这个主要方案。该方案允许从 E-香叶基丙酮 (IIa) 中分离 (4E,8E) 法呢基乙酸 (I-EE) 和 (4Z,SE)-法呢基乙酸 (I-ZE) 酸的香叶酯混合物,以及来自 Z-香叶基丙酮 (lib) 的 (4E,8Z)-法呢基乙酸 (I-EZ) 和 (4Z,8Z)-法呢基乙酸 (I-ZZ) 酸的香叶酯。