Microwave-promoted morita-baylis-hillman reactions: efficient synthesis of new monoacylglycerols (MAGs) as potential anti-parasitic compounds
作者:Suervy C. O. Sousa、Claudio G. L. Junior、Fábio P. L. Silva、Natália G. Andrade、Ticiano P. Barbosa、Mário L. A. A. Vasconcellos
DOI:10.1590/s0103-50532011000900003
日期:——
In this article we describe microwave irradiation promoting the synthesis of a hydrophilic monoacylglycerol, MAG, by hydrolysis of acrylate (15 min, 100%). After, MAG was transformed in hydrophilic Morita-Baylis-Hillman adducts (MBHA), (54-82%, pathway 1). In pathway 2, the different lipophilic MBHAs were prepared in high yields (90-100%) and transformed on hydrophilic MBHA, in 70-90%. Through the high temperature synthesis of one MBHA, a unprecedented indolizine formation was detected by GC-MS, . All results are in agreement with the new unified mechanism to the Morita-Baylis-Hillman reaction. These new monoacylglycerols, as well the its synthetic precursors, are new potential antiparasitic compounds.
本文介绍了微波辐照通过水解丙烯酸酯(15 分钟,100%)促进亲水性单酰基甘油 MAG 的合成。之后,MAG 转化为亲水性的 Morita-Baylis-Hillman 加合物(MBHA)(54-82%,途径 1)。在途径 2 中,不同亲脂性 MBHA 的制备率较高(90-100%),亲水性 MBHA 的转化率为 70-90%。通过高温合成一种 MBHA,GC-MS 检测到了一种前所未有的吲哚利嗪的形成。所有结果都与 Morita-Baylis-Hillman 反应的新统一机理一致。这些新的单酰甘油及其合成前体是新的潜在抗寄生虫化合物。