The development of a reliable procedure for the synthesis of the 16-glucoside and 16-sulfate of the resorcylic acid lactone (RAL) type compound zearalenone is presented. Different protective group strategies were considered and applied to enable the preparation of glucosides and sulfates that are difficult to access up to now. Acetyl and p-methoxybenzyl protection led to undesired results and were shown to be inappropriate. Finally, triisopropylsilyl-protected zearalenone was successfully used as intermediate for the first synthesis of the corresponding mycotoxin glucoside and sulfate that are highly valuable as reference materials for further studies in the emerging field of masked mycotoxins. Furthermore, high stability was observed for aryl sulfates prepared as tetrabutylammonium salts. Overall, these findings should be applicable for the synthesis of similar RAL type and natural product conjugates.
本文提出了合成16-葡萄糖苷和16-硫酸盐的可靠程序,这是一种属于雷斯酸内酯(RAL)型化合物的玉米赤霉醇。考虑到不同的保护策略,并将其应用于合成难以获得的葡萄糖苷和硫酸盐。乙酰基和p-甲氧基苄基保护导致不良结果,被认为是不适当的。最后,三异丙基硅基保护的玉米赤霉醇作为中间体,首次成功用于合成相应的霉菌毒素葡萄糖苷和硫酸盐,这些物质作为参考材料对于新兴领域中的隐蔽霉菌毒素研究非常有价值。此外,作为四丁基铵盐制备的芳基硫酸盐表现出高稳定性。总的来说,这些发现应该适用于合成类似的RAL型和天然产物结合物。